Contents

Introduction

The purpose of this page is to display luminosity contrast ratios for all web safe colours against a web safe background colour. The results are shown in a table that also includes the difference in brightness, and the difference in colour that are used by the colour contrast analyser for comparison. To test the luminosity contrast ratio for any colour combination, use the luminosity contrast ratio analyser.

The following icons are used in the results to indicate whether or not the result of a calculation is a pass.

Key for the Icons
Icon Meaning
Fail Indicates the value shown is a failure.
Pass Indicates the value shown is a pass.
Level AA Indicates that the luminosity contrast ratio is a level AA pass for large text (at least 18 point or 14 point bold)
Level AAA Indicates that the luminosity contrast ratio is a level AAA pass for large text (at least 18 point or 14 point bold)
Level AA Indicates that the luminosity contrast ratio is a level AA pass for regular text.
Level AAA Indicates that the luminosity contrast ratio is a level AAA pass for regular text.

Luminosity Contrast Ratios for #309

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #309, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #309
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Fail1.60
Fail
Fail 32 Fail 204
#003 Sample Fail1.53
Fail
Fail 26 Fail 153
#006 Sample Fail1.34
Fail
Fail 21 Fail 102
#009 Sample Fail1.10
Fail
Fail 15 Fail 51
#00c Sample Fail1.17
Fail
Fail 9 Fail 102
#00f Sample Fail1.53
Fail
Fail 3 Fail 153
#030 Sample Fail1.09
Fail
Fail 2 Fail 255
#033 Sample Fail1.05
Fail
Fail 3 Fail 204
#036 Sample Fail1.04
Fail
Fail 8 Fail 153
#039 Sample Fail1.21
Fail
Fail 14 Fail 102
#03c Sample Fail1.47
Fail
Fail 20 Fail 153
#03f Sample Fail1.82
Fail
Fail 26 Fail 204
#060 Sample Fail1.81
Fail
Fail 27 Fail 306
#063 Sample Fail1.84
Fail
Fail 32 Fail 255
#066 Sample Fail1.93
Fail
Fail 38 Fail 204
#069 Sample Fail2.10
Fail
Fail 44 Fail 153
#06c Sample Fail2.36
Fail
Fail 50 Fail 204
#06f Sample Fail2.71
Fail
Fail 56 Fail 255
#090 Sample Pass Level AA for large text3.47
Fail fo regular text
Fail 57 Fail 357
#093 Sample Pass Level AA for large text3.50
Fail fo regular text
Fail 62 Fail 306
#096 Sample Pass Level AA for large text3.59
Fail fo regular text
Fail 68 Fail 255
#099 Sample Pass Level AA for large text3.76
Fail fo regular text
Fail 74 Fail 204
#09c Sample Pass Level AA for large text4.02
Fail fo regular text
Fail 80 Fail 255
#09f Sample Pass Level AA for large text4.37
Fail fo regular text
Fail 86 Fail 306
#0c0 Sample Pass Level AAA for large text6.02
Pass level 2 fo regular text
Fail 87 Fail 408
#0c3 Sample Pass Level AAA for large text6.05
Pass level 2 fo regular text
Fail 92 Fail 357
#0c6 Sample Pass Level AAA for large text6.14
Pass level 2 fo regular text
Fail 98 Fail 306
#0c9 Sample Pass Level AAA for large text6.31
Pass level 2 fo regular text
Fail 104 Fail 255
#0cc Sample Pass Level AAA for large text6.57
Pass level 2 fo regular text
Fail 110 Fail 306
#0cf Sample Pass Level AAA for large text6.92
Pass level 2 fo regular text
Fail 116 Fail 357
#0f0 Sample Pass Level AAA for large text9.56
Pass Level AAA for regular text
Fail 116 Fail 459
#0f3 Sample Pass Level AAA for large text9.59
Pass Level AAA for regular text
Fail 122 Fail 408
#0f6 Sample Pass Level AAA for large text9.68
Pass Level AAA for regular text
Pass 128 Fail 357
#0f9 Sample Pass Level AAA for large text9.85
Pass Level AAA for regular text
Pass 134 Fail 306
#0fc Sample Pass Level AAA for large text10.11
Pass Level AAA for regular text
Pass 140 Fail 357
#0ff Sample Pass Level AAA for large text10.46
Pass Level AAA for regular text
Pass 146 Fail 408
#300 Sample Fail1.40
Fail
Fail 17 Fail 153
#303 Sample Fail1.35
Fail
Fail 11 Fail 102
#306 Sample Fail1.20
Fail
Fail 5 Fail 51
#309 Sample Fail1.00
Fail
Fail 0 Fail 0
#30c Sample Fail1.26
Fail
Fail 5 Fail 51
#30f Sample Fail1.61
Fail
Fail 11 Fail 102
#330 Sample Fail1.01
Fail
Fail 12 Fail 204
#333 Sample Fail1.04
Fail
Fail 18 Fail 153
#336 Sample Fail1.13
Fail
Fail 24 Fail 102
#339 Sample Fail1.30
Fail
Fail 29 Fail 51
#33c Sample Fail1.55
Fail
Fail 35 Fail 102
#33f Sample Fail1.91
Fail
Fail 41 Fail 153
#360 Sample Fail1.90
Fail
Fail 42 Fail 255
#363 Sample Fail1.93
Fail
Fail 48 Fail 204
#366 Sample Fail2.02
Fail
Fail 54 Fail 153
#369 Sample Fail2.19
Fail
Fail 59 Fail 102
#36c Sample Fail2.44
Fail
Fail 65 Fail 153
#36f Sample Fail2.80
Fail
Fail 71 Fail 204
#390 Sample Pass Level AA for large text3.56
Fail fo regular text
Fail 72 Fail 306
#393 Sample Pass Level AA for large text3.59
Fail fo regular text
Fail 78 Fail 255
#396 Sample Pass Level AA for large text3.68
Fail fo regular text
Fail 83 Fail 204
#399 Sample Pass Level AA for large text3.85
Fail fo regular text
Fail 89 Fail 153
#39c Sample Pass Level AA for large text4.10
Fail fo regular text
Fail 95 Fail 204
#39f Sample Pass Level AA for large text4.46
Fail fo regular text
Fail 101 Fail 255
#3c0 Sample Pass Level AAA for large text6.11
Pass level 2 fo regular text
Fail 102 Fail 357
#3c3 Sample Pass Level AAA for large text6.14
Pass level 2 fo regular text
Fail 108 Fail 306
#3c6 Sample Pass Level AAA for large text6.23
Pass level 2 fo regular text
Fail 113 Fail 255
#3c9 Sample Pass Level AAA for large text6.40
Pass level 2 fo regular text
Fail 119 Fail 204
#3cc Sample Pass Level AAA for large text6.65
Pass level 2 fo regular text
Fail 125 Fail 255
#3cf Sample Pass Level AAA for large text7.01
Pass Level AAA for regular text
Pass 131 Fail 306
#3f0 Sample Pass Level AAA for large text9.65
Pass Level AAA for regular text
Pass 132 Fail 408
#3f3 Sample Pass Level AAA for large text9.68
Pass Level AAA for regular text
Pass 138 Fail 357
#3f6 Sample Pass Level AAA for large text9.77
Pass Level AAA for regular text
Pass 143 Fail 306
#3f9 Sample Pass Level AAA for large text9.94
Pass Level AAA for regular text
Pass 149 Fail 255
#3fc Sample Pass Level AAA for large text10.19
Pass Level AAA for regular text
Pass 155 Fail 306
#3ff Sample Pass Level AAA for large text10.55
Pass Level AAA for regular text
Pass 161 Fail 357
#600 Sample Fail1.02
Fail
Fail 2 Fail 204
#603 Sample Fail1.01
Fail
Fail 3 Fail 153
#606 Sample Fail1.10
Fail
Fail 9 Fail 102
#609 Sample Fail1.26
Fail
Fail 15 Fail 51
#60c Sample Fail1.52
Fail
Fail 21 Fail 102
#60f Sample Fail1.88
Fail
Fail 26 Fail 153
#630 Sample Fail1.27
Fail
Fail 27 Fail 255
#633 Sample Fail1.30
Fail
Fail 33 Fail 204
#636 Sample Fail1.39
Fail
Fail 39 Fail 153
#639 Sample Fail1.56
Fail
Fail 45 Fail 102
#63c Sample Fail1.82
Fail
Fail 51 Fail 153
#63f Sample Fail2.18
Fail
Fail 56 Fail 204
#660 Sample Fail2.16
Fail
Fail 57 Fail 306
#663 Sample Fail2.19
Fail
Fail 63 Fail 255
#666 Sample Fail2.28
Fail
Fail 69 Fail 204
#669 Sample Fail2.45
Fail
Fail 75 Fail 153
#66c Sample Fail2.71
Fail
Fail 80 Fail 204
#66f Sample Pass Level AA for large text3.07
Fail fo regular text
Fail 86 Fail 255
#690 Sample Pass Level AA for large text3.82
Fail fo regular text
Fail 87 Fail 357
#693 Sample Pass Level AA for large text3.85
Fail fo regular text
Fail 93 Fail 306
#696 Sample Pass Level AA for large text3.94
Fail fo regular text
Fail 99 Fail 255
#699 Sample Pass Level AA for large text4.11
Fail fo regular text
Fail 105 Fail 204
#69c Sample Pass Level AA for large text4.37
Fail fo regular text
Fail 110 Fail 255
#69f Sample Pass Level AAA for large text4.73
Pass level 2 fo regular text
Fail 116 Fail 306
#6c0 Sample Pass Level AAA for large text6.37
Pass level 2 fo regular text
Fail 117 Fail 408
#6c3 Sample Pass Level AAA for large text6.40
Pass level 2 fo regular text
Fail 123 Fail 357
#6c6 Sample Pass Level AAA for large text6.49
Pass level 2 fo regular text
Pass 129 Fail 306
#6c9 Sample Pass Level AAA for large text6.66
Pass level 2 fo regular text
Pass 134 Fail 255
#6cc Sample Pass Level AAA for large text6.92
Pass level 2 fo regular text
Pass 140 Fail 306
#6cf Sample Pass Level AAA for large text7.28
Pass Level AAA for regular text
Pass 146 Fail 357
#6f0 Sample Pass Level AAA for large text9.91
Pass Level AAA for regular text
Pass 147 Fail 459
#6f3 Sample Pass Level AAA for large text9.94
Pass Level AAA for regular text
Pass 153 Fail 408
#6f6 Sample Pass Level AAA for large text10.03
Pass Level AAA for regular text
Pass 159 Fail 357
#6f9 Sample Pass Level AAA for large text10.20
Pass Level AAA for regular text
Pass 164 Fail 306
#6fc Sample Pass Level AAA for large text10.46
Pass Level AAA for regular text
Pass 170 Fail 357
#6ff Sample Pass Level AAA for large text10.82
Pass Level AAA for regular text
Pass 176 Fail 408
#900 Sample Fail1.47
Fail
Fail 13 Fail 255
#903 Sample Fail1.50
Fail
Fail 18 Fail 204
#906 Sample Fail1.59
Fail
Fail 24 Fail 153
#909 Sample Fail1.76
Fail
Fail 30 Fail 102
#90c Sample Fail2.02
Fail
Fail 36 Fail 153
#90f Sample Fail2.37
Fail
Fail 42 Fail 204
#930 Sample Fail1.77
Fail
Fail 42 Fail 306
#933 Sample Fail1.80
Fail
Fail 48 Fail 255
#936 Sample Fail1.89
Fail
Fail 54 Fail 204
#939 Sample Fail2.05
Fail
Fail 60 Fail 153
#93c Sample Fail2.31
Fail
Fail 66 Fail 204
#93f Sample Fail2.67
Fail
Fail 72 Fail 255
#960 Sample Fail2.66
Fail
Fail 72 Fail 357
#963 Sample Fail2.69
Fail
Fail 78 Fail 306
#966 Sample Fail2.78
Fail
Fail 84 Fail 255
#969 Sample Fail2.95
Fail
Fail 90 Fail 204
#96c Sample Pass Level AA for large text3.20
Fail fo regular text
Fail 96 Fail 255
#96f Sample Pass Level AA for large text3.56
Fail fo regular text
Fail 102 Fail 306
#990 Sample Pass Level AA for large text4.32
Fail fo regular text
Fail 102 Fail 408
#993 Sample Pass Level AA for large text4.35
Fail fo regular text
Fail 108 Fail 357
#996 Sample Pass Level AA for large text4.44
Fail fo regular text
Fail 114 Fail 306
#999 Sample Pass Level AAA for large text4.60
Pass level 2 fo regular text
Fail 120 Fail 255
#99c Sample Pass Level AAA for large text4.86
Pass level 2 fo regular text
Pass 126 Fail 306
#99f Sample Pass Level AAA for large text5.22
Pass level 2 fo regular text
Pass 131 Fail 357
#9c0 Sample Pass Level AAA for large text6.87
Pass level 2 fo regular text
Pass 132 Fail 459
#9c3 Sample Pass Level AAA for large text6.90
Pass level 2 fo regular text
Pass 138 Fail 408
#9c6 Sample Pass Level AAA for large text6.99
Pass level 2 fo regular text
Pass 144 Fail 357
#9c9 Sample Pass Level AAA for large text7.15
Pass Level AAA for regular text
Pass 150 Fail 306
#9cc Sample Pass Level AAA for large text7.41
Pass Level AAA for regular text
Pass 156 Fail 357
#9cf Sample Pass Level AAA for large text7.77
Pass Level AAA for regular text
Pass 161 Fail 408
#9f0 Sample Pass Level AAA for large text10.41
Pass Level AAA for regular text
Pass 162 Pass 510
#9f3 Sample Pass Level AAA for large text10.44
Pass Level AAA for regular text
Pass 168 Fail 459
#9f6 Sample Pass Level AAA for large text10.53
Pass Level AAA for regular text
Pass 174 Fail 408
#9f9 Sample Pass Level AAA for large text10.69
Pass Level AAA for regular text
Pass 180 Fail 357
#9fc Sample Pass Level AAA for large text10.95
Pass Level AAA for regular text
Pass 185 Fail 408
#9ff Sample Pass Level AAA for large text11.31
Pass Level AAA for regular text
Pass 191 Fail 459
#c00 Sample Fail2.23
Fail
Fail 28 Fail 306
#c03 Sample Fail2.26
Fail
Fail 34 Fail 255
#c06 Sample Fail2.35
Fail
Fail 39 Fail 204
#c09 Sample Fail2.52
Fail
Fail 45 Fail 153
#c0c Sample Fail2.77
Fail
Fail 51 Fail 204
#c0f Sample Pass Level AA for large text3.13
Fail fo regular text
Fail 57 Fail 255
#c30 Sample Fail2.52
Fail
Fail 58 Fail 357
#c33 Sample Fail2.55
Fail
Fail 64 Fail 306
#c36 Sample Fail2.64
Fail
Fail 69 Fail 255
#c39 Sample Fail2.81
Fail
Fail 75 Fail 204
#c3c Sample Pass Level AA for large text3.07
Fail fo regular text
Fail 81 Fail 255
#c3f Sample Pass Level AA for large text3.43
Fail fo regular text
Fail 87 Fail 306
#c60 Sample Pass Level AA for large text3.42
Fail fo regular text
Fail 88 Fail 408
#c63 Sample Pass Level AA for large text3.45
Fail fo regular text
Fail 93 Fail 357
#c66 Sample Pass Level AA for large text3.54
Fail fo regular text
Fail 99 Fail 306
#c69 Sample Pass Level AA for large text3.70
Fail fo regular text
Fail 105 Fail 255
#c6c Sample Pass Level AA for large text3.96
Fail fo regular text
Fail 111 Fail 306
#c6f Sample Pass Level AA for large text4.32
Fail fo regular text
Fail 117 Fail 357
#c90 Sample Pass Level AAA for large text5.08
Pass level 2 fo regular text
Fail 118 Fail 459
#c93 Sample Pass Level AAA for large text5.10
Pass level 2 fo regular text
Fail 123 Fail 408
#c96 Sample Pass Level AAA for large text5.19
Pass level 2 fo regular text
Pass 129 Fail 357
#c99 Sample Pass Level AAA for large text5.36
Pass level 2 fo regular text
Pass 135 Fail 306
#c9c Sample Pass Level AAA for large text5.62
Pass level 2 fo regular text
Pass 141 Fail 357
#c9f Sample Pass Level AAA for large text5.98
Pass level 2 fo regular text
Pass 147 Fail 408
#cc0 Sample Pass Level AAA for large text7.62
Pass Level AAA for regular text
Pass 148 Pass 510
#cc3 Sample Pass Level AAA for large text7.65
Pass Level AAA for regular text
Pass 153 Fail 459
#cc6 Sample Pass Level AAA for large text7.74
Pass Level AAA for regular text
Pass 159 Fail 408
#cc9 Sample Pass Level AAA for large text7.91
Pass Level AAA for regular text
Pass 165 Fail 357
#ccc Sample Pass Level AAA for large text8.17
Pass Level AAA for regular text
Pass 171 Fail 408
#ccf Sample Pass Level AAA for large text8.53
Pass Level AAA for regular text
Pass 177 Fail 459
#cf0 Sample Pass Level AAA for large text11.16
Pass Level AAA for regular text
Pass 177 Pass 561
#cf3 Sample Pass Level AAA for large text11.19
Pass Level AAA for regular text
Pass 183 Pass 510
#cf6 Sample Pass Level AAA for large text11.28
Pass Level AAA for regular text
Pass 189 Fail 459
#cf9 Sample Pass Level AAA for large text11.45
Pass Level AAA for regular text
Pass 195 Fail 408
#cfc Sample Pass Level AAA for large text11.71
Pass Level AAA for regular text
Pass 201 Fail 459
#cff Sample Pass Level AAA for large text12.07
Pass Level AAA for regular text
Pass 207 Pass 510
#f00 Sample Pass Level AA for large text3.28
Fail fo regular text
Fail 43 Fail 357
#f03 Sample Pass Level AA for large text3.31
Fail fo regular text
Fail 49 Fail 306
#f06 Sample Pass Level AA for large text3.40
Fail fo regular text
Fail 55 Fail 255
#f09 Sample Pass Level AA for large text3.57
Fail fo regular text
Fail 60 Fail 204
#f0c Sample Pass Level AA for large text3.83
Fail fo regular text
Fail 66 Fail 255
#f0f Sample Pass Level AA for large text4.18
Fail fo regular text
Fail 72 Fail 306
#f30 Sample Pass Level AA for large text3.58
Fail fo regular text
Fail 73 Fail 408
#f33 Sample Pass Level AA for large text3.61
Fail fo regular text
Fail 79 Fail 357
#f36 Sample Pass Level AA for large text3.70
Fail fo regular text
Fail 85 Fail 306
#f39 Sample Pass Level AA for large text3.86
Fail fo regular text
Fail 90 Fail 255
#f3c Sample Pass Level AA for large text4.12
Fail fo regular text
Fail 96 Fail 306
#f3f Sample Pass Level AA for large text4.48
Fail fo regular text
Fail 102 Fail 357
#f60 Sample Pass Level AA for large text4.47
Fail fo regular text
Fail 103 Fail 459
#f63 Sample Pass Level AA for large text4.50
Fail fo regular text
Fail 109 Fail 408
#f66 Sample Pass Level AAA for large text4.59
Pass level 2 fo regular text
Fail 115 Fail 357
#f69 Sample Pass Level AAA for large text4.76
Pass level 2 fo regular text
Fail 120 Fail 306
#f6c Sample Pass Level AAA for large text5.01
Pass level 2 fo regular text
Pass 126 Fail 357
#f6f Sample Pass Level AAA for large text5.37
Pass level 2 fo regular text
Pass 132 Fail 408
#f90 Sample Pass Level AAA for large text6.13
Pass level 2 fo regular text
Pass 133 Pass 510
#f93 Sample Pass Level AAA for large text6.16
Pass level 2 fo regular text
Pass 139 Fail 459
#f96 Sample Pass Level AAA for large text6.25
Pass level 2 fo regular text
Pass 144 Fail 408
#f99 Sample Pass Level AAA for large text6.41
Pass level 2 fo regular text
Pass 150 Fail 357
#f9c Sample Pass Level AAA for large text6.67
Pass level 2 fo regular text
Pass 156 Fail 408
#f9f Sample Pass Level AAA for large text7.03
Pass Level AAA for regular text
Pass 162 Fail 459
#fc0 Sample Pass Level AAA for large text8.68
Pass Level AAA for regular text
Pass 163 Pass 561
#fc3 Sample Pass Level AAA for large text8.71
Pass Level AAA for regular text
Pass 169 Pass 510
#fc6 Sample Pass Level AAA for large text8.80
Pass Level AAA for regular text
Pass 174 Fail 459
#fc9 Sample Pass Level AAA for large text8.96
Pass Level AAA for regular text
Pass 180 Fail 408
#fcc Sample Pass Level AAA for large text9.22
Pass Level AAA for regular text
Pass 186 Fail 459
#fcf Sample Pass Level AAA for large text9.58
Pass Level AAA for regular text
Pass 192 Pass 510
#ff0 Sample Pass Level AAA for large text12.22
Pass Level AAA for regular text
Pass 193 Pass 612
#ff3 Sample Pass Level AAA for large text12.25
Pass Level AAA for regular text
Pass 199 Pass 561
#ff6 Sample Pass Level AAA for large text12.34
Pass Level AAA for regular text
Pass 204 Pass 510
#ff9 Sample Pass Level AAA for large text12.50
Pass Level AAA for regular text
Pass 210 Fail 459
#ffc Sample Pass Level AAA for large text12.76
Pass Level AAA for regular text
Pass 216 Pass 510
#fff Sample Pass Level AAA for large text13.12
Pass Level AAA for regular text
Pass 222 Pass 561

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.