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 #00c

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #00c, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #00c
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Fail1.87
Fail
Fail 23 Fail 204
#003 Sample Fail1.79
Fail
Fail 17 Fail 153
#006 Sample Fail1.57
Fail
Fail 11 Fail 102
#009 Sample Fail1.28
Fail
Fail 5 Fail 51
#00c Sample Fail1.00
Fail
Fail 0 Fail 0
#00f Sample Fail1.31
Fail
Fail 5 Fail 51
#030 Sample Fail1.27
Fail
Fail 6 Fail 255
#033 Sample Fail1.23
Fail
Fail 12 Fail 204
#036 Sample Fail1.12
Fail
Fail 18 Fail 153
#039 Sample Fail1.03
Fail
Fail 24 Fail 102
#03c Sample Fail1.25
Fail
Fail 29 Fail 51
#03f Sample Fail1.56
Fail
Fail 35 Fail 102
#060 Sample Fail1.55
Fail
Fail 36 Fail 306
#063 Sample Fail1.58
Fail
Fail 42 Fail 255
#066 Sample Fail1.65
Fail
Fail 48 Fail 204
#069 Sample Fail1.80
Fail
Fail 54 Fail 153
#06c Sample Fail2.02
Fail
Fail 59 Fail 102
#06f Sample Fail2.32
Fail
Fail 65 Fail 153
#090 Sample Fail2.97
Fail
Fail 66 Fail 357
#093 Sample Fail2.99
Fail
Fail 72 Fail 306
#096 Sample Pass Level AA for large text3.07
Fail fo regular text
Fail 78 Fail 255
#099 Sample Pass Level AA for large text3.21
Fail fo regular text
Fail 83 Fail 204
#09c Sample Pass Level AA for large text3.43
Fail fo regular text
Fail 89 Fail 153
#09f Sample Pass Level AA for large text3.74
Fail fo regular text
Fail 95 Fail 204
#0c0 Sample Pass Level AAA for large text5.15
Pass level 2 fo regular text
Fail 96 Fail 408
#0c3 Sample Pass Level AAA for large text5.17
Pass level 2 fo regular text
Fail 102 Fail 357
#0c6 Sample Pass Level AAA for large text5.25
Pass level 2 fo regular text
Fail 108 Fail 306
#0c9 Sample Pass Level AAA for large text5.39
Pass level 2 fo regular text
Fail 113 Fail 255
#0cc Sample Pass Level AAA for large text5.61
Pass level 2 fo regular text
Fail 119 Fail 204
#0cf Sample Pass Level AAA for large text5.92
Pass level 2 fo regular text
Fail 125 Fail 255
#0f0 Sample Pass Level AAA for large text8.18
Pass Level AAA for regular text
Pass 126 Fail 459
#0f3 Sample Pass Level AAA for large text8.20
Pass Level AAA for regular text
Pass 132 Fail 408
#0f6 Sample Pass Level AAA for large text8.28
Pass Level AAA for regular text
Pass 138 Fail 357
#0f9 Sample Pass Level AAA for large text8.42
Pass Level AAA for regular text
Pass 143 Fail 306
#0fc Sample Pass Level AAA for large text8.64
Pass Level AAA for regular text
Pass 149 Fail 255
#0ff Sample Pass Level AAA for large text8.95
Pass Level AAA for regular text
Pass 155 Fail 306
#300 Sample Fail1.64
Fail
Fail 8 Fail 255
#303 Sample Fail1.57
Fail
Fail 2 Fail 204
#306 Sample Fail1.40
Fail
Fail 3 Fail 153
#309 Sample Fail1.17
Fail
Fail 9 Fail 102
#30c Sample Fail1.08
Fail
Fail 15 Fail 51
#30f Sample Fail1.38
Fail
Fail 21 Fail 102
#330 Sample Fail1.16
Fail
Fail 21 Fail 306
#333 Sample Fail1.13
Fail
Fail 27 Fail 255
#336 Sample Fail1.04
Fail
Fail 33 Fail 204
#339 Sample Fail1.11
Fail
Fail 39 Fail 153
#33c Sample Fail1.33
Fail
Fail 45 Fail 102
#33f Sample Fail1.63
Fail
Fail 51 Fail 153
#360 Sample Fail1.62
Fail
Fail 51 Fail 357
#363 Sample Fail1.65
Fail
Fail 57 Fail 306
#366 Sample Fail1.73
Fail
Fail 63 Fail 255
#369 Sample Fail1.87
Fail
Fail 69 Fail 204
#36c Sample Fail2.09
Fail
Fail 75 Fail 153
#36f Sample Fail2.40
Fail
Fail 80 Fail 204
#390 Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 81 Fail 408
#393 Sample Pass Level AA for large text3.07
Fail fo regular text
Fail 87 Fail 357
#396 Sample Pass Level AA for large text3.15
Fail fo regular text
Fail 93 Fail 306
#399 Sample Pass Level AA for large text3.29
Fail fo regular text
Fail 99 Fail 255
#39c Sample Pass Level AA for large text3.51
Fail fo regular text
Fail 105 Fail 204
#39f Sample Pass Level AA for large text3.81
Fail fo regular text
Fail 110 Fail 255
#3c0 Sample Pass Level AAA for large text5.22
Pass level 2 fo regular text
Fail 111 Fail 459
#3c3 Sample Pass Level AAA for large text5.25
Pass level 2 fo regular text
Fail 117 Fail 408
#3c6 Sample Pass Level AAA for large text5.33
Pass level 2 fo regular text
Fail 123 Fail 357
#3c9 Sample Pass Level AAA for large text5.47
Pass level 2 fo regular text
Pass 129 Fail 306
#3cc Sample Pass Level AAA for large text5.69
Pass level 2 fo regular text
Pass 134 Fail 255
#3cf Sample Pass Level AAA for large text5.99
Pass level 2 fo regular text
Pass 140 Fail 306
#3f0 Sample Pass Level AAA for large text8.25
Pass Level AAA for regular text
Pass 141 Pass 510
#3f3 Sample Pass Level AAA for large text8.28
Pass Level AAA for regular text
Pass 147 Fail 459
#3f6 Sample Pass Level AAA for large text8.35
Pass Level AAA for regular text
Pass 153 Fail 408
#3f9 Sample Pass Level AAA for large text8.50
Pass Level AAA for regular text
Pass 159 Fail 357
#3fc Sample Pass Level AAA for large text8.72
Pass Level AAA for regular text
Pass 164 Fail 306
#3ff Sample Pass Level AAA for large text9.02
Pass Level AAA for regular text
Pass 170 Fail 357
#600 Sample Fail1.20
Fail
Fail 7 Fail 306
#603 Sample Fail1.16
Fail
Fail 13 Fail 255
#606 Sample Fail1.07
Fail
Fail 18 Fail 204
#609 Sample Fail1.08
Fail
Fail 24 Fail 153
#60c Sample Fail1.30
Fail
Fail 30 Fail 102
#60f Sample Fail1.61
Fail
Fail 36 Fail 153
#630 Sample Fail1.09
Fail
Fail 37 Fail 357
#633 Sample Fail1.11
Fail
Fail 42 Fail 306
#636 Sample Fail1.19
Fail
Fail 48 Fail 255
#639 Sample Fail1.33
Fail
Fail 54 Fail 204
#63c Sample Fail1.55
Fail
Fail 60 Fail 153
#63f Sample Fail1.86
Fail
Fail 66 Fail 204
#660 Sample Fail1.85
Fail
Fail 67 Fail 408
#663 Sample Fail1.88
Fail
Fail 72 Fail 357
#666 Sample Fail1.95
Fail
Fail 78 Fail 306
#669 Sample Fail2.10
Fail
Fail 84 Fail 255
#66c Sample Fail2.32
Fail
Fail 90 Fail 204
#66f Sample Fail2.62
Fail
Fail 96 Fail 255
#690 Sample Pass Level AA for large text3.27
Fail fo regular text
Fail 97 Fail 459
#693 Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 102 Fail 408
#696 Sample Pass Level AA for large text3.37
Fail fo regular text
Fail 108 Fail 357
#699 Sample Pass Level AA for large text3.52
Fail fo regular text
Fail 114 Fail 306
#69c Sample Pass Level AA for large text3.74
Fail fo regular text
Fail 120 Fail 255
#69f Sample Pass Level AA for large text4.04
Fail fo regular text
Pass 126 Fail 306
#6c0 Sample Pass Level AAA for large text5.45
Pass level 2 fo regular text
Pass 126 Pass 510
#6c3 Sample Pass Level AAA for large text5.48
Pass level 2 fo regular text
Pass 132 Fail 459
#6c6 Sample Pass Level AAA for large text5.55
Pass level 2 fo regular text
Pass 138 Fail 408
#6c9 Sample Pass Level AAA for large text5.70
Pass level 2 fo regular text
Pass 144 Fail 357
#6cc Sample Pass Level AAA for large text5.92
Pass level 2 fo regular text
Pass 150 Fail 306
#6cf Sample Pass Level AAA for large text6.22
Pass level 2 fo regular text
Pass 156 Fail 357
#6f0 Sample Pass Level AAA for large text8.48
Pass Level AAA for regular text
Pass 156 Pass 561
#6f3 Sample Pass Level AAA for large text8.50
Pass Level AAA for regular text
Pass 162 Pass 510
#6f6 Sample Pass Level AAA for large text8.58
Pass Level AAA for regular text
Pass 168 Fail 459
#6f9 Sample Pass Level AAA for large text8.72
Pass Level AAA for regular text
Pass 174 Fail 408
#6fc Sample Pass Level AAA for large text8.94
Pass Level AAA for regular text
Pass 180 Fail 357
#6ff Sample Pass Level AAA for large text9.25
Pass Level AAA for regular text
Pass 185 Fail 408
#900 Sample Fail1.26
Fail
Fail 22 Fail 357
#903 Sample Fail1.28
Fail
Fail 28 Fail 306
#906 Sample Fail1.36
Fail
Fail 34 Fail 255
#909 Sample Fail1.50
Fail
Fail 39 Fail 204
#90c Sample Fail1.72
Fail
Fail 45 Fail 153
#90f Sample Fail2.03
Fail
Fail 51 Fail 204
#930 Sample Fail1.51
Fail
Fail 52 Fail 408
#933 Sample Fail1.54
Fail
Fail 58 Fail 357
#936 Sample Fail1.61
Fail
Fail 64 Fail 306
#939 Sample Fail1.76
Fail
Fail 69 Fail 255
#93c Sample Fail1.98
Fail
Fail 75 Fail 204
#93f Sample Fail2.28
Fail
Fail 81 Fail 255
#960 Sample Fail2.27
Fail
Fail 82 Fail 459
#963 Sample Fail2.30
Fail
Fail 88 Fail 408
#966 Sample Fail2.38
Fail
Fail 93 Fail 357
#969 Sample Fail2.52
Fail
Fail 99 Fail 306
#96c Sample Fail2.74
Fail
Fail 105 Fail 255
#96f Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 111 Fail 306
#990 Sample Pass Level AA for large text3.69
Fail fo regular text
Fail 112 Pass 510
#993 Sample Pass Level AA for large text3.72
Fail fo regular text
Fail 118 Fail 459
#996 Sample Pass Level AA for large text3.79
Fail fo regular text
Fail 123 Fail 408
#999 Sample Pass Level AA for large text3.94
Fail fo regular text
Pass 129 Fail 357
#99c Sample Pass Level AA for large text4.16
Fail fo regular text
Pass 135 Fail 306
#99f Sample Pass Level AA for large text4.46
Fail fo regular text
Pass 141 Fail 357
#9c0 Sample Pass Level AAA for large text5.87
Pass level 2 fo regular text
Pass 142 Pass 561
#9c3 Sample Pass Level AAA for large text5.90
Pass level 2 fo regular text
Pass 148 Pass 510
#9c6 Sample Pass Level AAA for large text5.97
Pass level 2 fo regular text
Pass 153 Fail 459
#9c9 Sample Pass Level AAA for large text6.12
Pass level 2 fo regular text
Pass 159 Fail 408
#9cc Sample Pass Level AAA for large text6.34
Pass level 2 fo regular text
Pass 165 Fail 357
#9cf Sample Pass Level AAA for large text6.64
Pass level 2 fo regular text
Pass 171 Fail 408
#9f0 Sample Pass Level AAA for large text8.90
Pass Level AAA for regular text
Pass 172 Pass 612
#9f3 Sample Pass Level AAA for large text8.92
Pass Level AAA for regular text
Pass 177 Pass 561
#9f6 Sample Pass Level AAA for large text9.00
Pass Level AAA for regular text
Pass 183 Pass 510
#9f9 Sample Pass Level AAA for large text9.14
Pass Level AAA for regular text
Pass 189 Fail 459
#9fc Sample Pass Level AAA for large text9.36
Pass Level AAA for regular text
Pass 195 Fail 408
#9ff Sample Pass Level AAA for large text9.67
Pass Level AAA for regular text
Pass 201 Fail 459
#c00 Sample Fail1.91
Fail
Fail 37 Fail 408
#c03 Sample Fail1.93
Fail
Fail 43 Fail 357
#c06 Sample Fail2.01
Fail
Fail 49 Fail 306
#c09 Sample Fail2.15
Fail
Fail 55 Fail 255
#c0c Sample Fail2.37
Fail
Fail 60 Fail 204
#c0f Sample Fail2.68
Fail
Fail 66 Fail 255
#c30 Sample Fail2.16
Fail
Fail 67 Fail 459
#c33 Sample Fail2.18
Fail
Fail 73 Fail 408
#c36 Sample Fail2.26
Fail
Fail 79 Fail 357
#c39 Sample Fail2.40
Fail
Fail 85 Fail 306
#c3c Sample Fail2.62
Fail
Fail 90 Fail 255
#c3f Sample Fail2.93
Fail
Fail 96 Fail 306
#c60 Sample Fail2.92
Fail
Fail 97 Pass 510
#c63 Sample Fail2.95
Fail
Fail 103 Fail 459
#c66 Sample Pass Level AA for large text3.02
Fail fo regular text
Fail 109 Fail 408
#c69 Sample Pass Level AA for large text3.17
Fail fo regular text
Fail 115 Fail 357
#c6c Sample Pass Level AA for large text3.39
Fail fo regular text
Fail 120 Fail 306
#c6f Sample Pass Level AA for large text3.69
Fail fo regular text
Pass 126 Fail 357
#c90 Sample Pass Level AA for large text4.34
Fail fo regular text
Pass 127 Pass 561
#c93 Sample Pass Level AA for large text4.37
Fail fo regular text
Pass 133 Pass 510
#c96 Sample Pass Level AA for large text4.44
Fail fo regular text
Pass 139 Fail 459
#c99 Sample Pass Level AAA for large text4.59
Pass level 2 fo regular text
Pass 144 Fail 408
#c9c Sample Pass Level AAA for large text4.81
Pass level 2 fo regular text
Pass 150 Fail 357
#c9f Sample Pass Level AAA for large text5.11
Pass level 2 fo regular text
Pass 156 Fail 408
#cc0 Sample Pass Level AAA for large text6.52
Pass level 2 fo regular text
Pass 157 Pass 612
#cc3 Sample Pass Level AAA for large text6.55
Pass level 2 fo regular text
Pass 163 Pass 561
#cc6 Sample Pass Level AAA for large text6.62
Pass level 2 fo regular text
Pass 169 Pass 510
#cc9 Sample Pass Level AAA for large text6.77
Pass level 2 fo regular text
Pass 174 Fail 459
#ccc Sample Pass Level AAA for large text6.99
Pass level 2 fo regular text
Pass 180 Fail 408
#ccf Sample Pass Level AAA for large text7.29
Pass Level AAA for regular text
Pass 186 Fail 459
#cf0 Sample Pass Level AAA for large text9.55
Pass Level AAA for regular text
Pass 187 Pass 663
#cf3 Sample Pass Level AAA for large text9.57
Pass Level AAA for regular text
Pass 193 Pass 612
#cf6 Sample Pass Level AAA for large text9.65
Pass Level AAA for regular text
Pass 199 Pass 561
#cf9 Sample Pass Level AAA for large text9.79
Pass Level AAA for regular text
Pass 204 Pass 510
#cfc Sample Pass Level AAA for large text10.01
Pass Level AAA for regular text
Pass 210 Fail 459
#cff Sample Pass Level AAA for large text10.32
Pass Level AAA for regular text
Pass 216 Pass 510
#f00 Sample Fail2.81
Fail
Fail 52 Fail 459
#f03 Sample Fail2.83
Fail
Fail 58 Fail 408
#f06 Sample Fail2.91
Fail
Fail 64 Fail 357
#f09 Sample Pass Level AA for large text3.05
Fail fo regular text
Fail 70 Fail 306
#f0c Sample Pass Level AA for large text3.27
Fail fo regular text
Fail 76 Fail 255
#f0f Sample Pass Level AA for large text3.58
Fail fo regular text
Fail 82 Fail 306
#f30 Sample Pass Level AA for large text3.06
Fail fo regular text
Fail 82 Pass 510
#f33 Sample Pass Level AA for large text3.08
Fail fo regular text
Fail 88 Fail 459
#f36 Sample Pass Level AA for large text3.16
Fail fo regular text
Fail 94 Fail 408
#f39 Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 100 Fail 357
#f3c Sample Pass Level AA for large text3.52
Fail fo regular text
Fail 106 Fail 306
#f3f Sample Pass Level AA for large text3.83
Fail fo regular text
Fail 111 Fail 357
#f60 Sample Pass Level AA for large text3.82
Fail fo regular text
Fail 112 Pass 561
#f63 Sample Pass Level AA for large text3.85
Fail fo regular text
Fail 118 Pass 510
#f66 Sample Pass Level AA for large text3.92
Fail fo regular text
Fail 124 Fail 459
#f69 Sample Pass Level AA for large text4.07
Fail fo regular text
Pass 130 Fail 408
#f6c Sample Pass Level AA for large text4.29
Fail fo regular text
Pass 136 Fail 357
#f6f Sample Pass Level AAA for large text4.59
Pass level 2 fo regular text
Pass 141 Fail 408
#f90 Sample Pass Level AAA for large text5.24
Pass level 2 fo regular text
Pass 142 Pass 612
#f93 Sample Pass Level AAA for large text5.27
Pass level 2 fo regular text
Pass 148 Pass 561
#f96 Sample Pass Level AAA for large text5.34
Pass level 2 fo regular text
Pass 154 Pass 510
#f99 Sample Pass Level AAA for large text5.49
Pass level 2 fo regular text
Pass 160 Fail 459
#f9c Sample Pass Level AAA for large text5.71
Pass level 2 fo regular text
Pass 166 Fail 408
#f9f Sample Pass Level AAA for large text6.01
Pass level 2 fo regular text
Pass 171 Fail 459
#fc0 Sample Pass Level AAA for large text7.42
Pass Level AAA for regular text
Pass 172 Pass 663
#fc3 Sample Pass Level AAA for large text7.45
Pass Level AAA for regular text
Pass 178 Pass 612
#fc6 Sample Pass Level AAA for large text7.52
Pass Level AAA for regular text
Pass 184 Pass 561
#fc9 Sample Pass Level AAA for large text7.67
Pass Level AAA for regular text
Pass 190 Pass 510
#fcc Sample Pass Level AAA for large text7.89
Pass Level AAA for regular text
Pass 195 Fail 459
#fcf Sample Pass Level AAA for large text8.19
Pass Level AAA for regular text
Pass 201 Pass 510
#ff0 Sample Pass Level AAA for large text10.45
Pass Level AAA for regular text
Pass 202 Pass 714
#ff3 Sample Pass Level AAA for large text10.47
Pass Level AAA for regular text
Pass 208 Pass 663
#ff6 Sample Pass Level AAA for large text10.55
Pass Level AAA for regular text
Pass 214 Pass 612
#ff9 Sample Pass Level AAA for large text10.69
Pass Level AAA for regular text
Pass 220 Pass 561
#ffc Sample Pass Level AAA for large text10.91
Pass Level AAA for regular text
Pass 225 Pass 510
#fff Sample Pass Level AAA for large text11.22
Pass Level AAA for regular text
Pass 231 Pass 561

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.