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 #30f

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #30f, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #30f
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Fail2.58
Fail
Fail 44 Fail 306
#003 Sample Fail2.47
Fail
Fail 38 Fail 255
#006 Sample Fail2.17
Fail
Fail 32 Fail 204
#009 Sample Fail1.77
Fail
Fail 26 Fail 153
#00c Sample Fail1.38
Fail
Fail 21 Fail 102
#00f Sample Fail1.06
Fail
Fail 15 Fail 51
#030 Sample Fail1.75
Fail
Fail 14 Fail 357
#033 Sample Fail1.70
Fail
Fail 8 Fail 306
#036 Sample Fail1.55
Fail
Fail 2 Fail 255
#039 Sample Fail1.34
Fail
Fail 3 Fail 204
#03c Sample Fail1.10
Fail
Fail 8 Fail 153
#03f Sample Fail1.13
Fail
Fail 14 Fail 102
#060 Sample Fail1.12
Fail
Fail 15 Fail 408
#063 Sample Fail1.14
Fail
Fail 21 Fail 357
#066 Sample Fail1.20
Fail
Fail 27 Fail 306
#069 Sample Fail1.30
Fail
Fail 32 Fail 255
#06c Sample Fail1.46
Fail
Fail 38 Fail 204
#06f Sample Fail1.68
Fail
Fail 44 Fail 153
#090 Sample Fail2.15
Fail
Fail 45 Fail 459
#093 Sample Fail2.17
Fail
Fail 51 Fail 408
#096 Sample Fail2.22
Fail
Fail 57 Fail 357
#099 Sample Fail2.33
Fail
Fail 62 Fail 306
#09c Sample Fail2.49
Fail
Fail 68 Fail 255
#09f Sample Fail2.71
Fail
Fail 74 Fail 204
#0c0 Sample Pass Level AA for large text3.73
Fail fo regular text
Fail 75 Pass 510
#0c3 Sample Pass Level AA for large text3.75
Fail fo regular text
Fail 81 Fail 459
#0c6 Sample Pass Level AA for large text3.80
Fail fo regular text
Fail 87 Fail 408
#0c9 Sample Pass Level AA for large text3.91
Fail fo regular text
Fail 92 Fail 357
#0cc Sample Pass Level AA for large text4.07
Fail fo regular text
Fail 98 Fail 306
#0cf Sample Pass Level AA for large text4.29
Fail fo regular text
Fail 104 Fail 255
#0f0 Sample Pass Level AAA for large text5.92
Pass level 2 fo regular text
Fail 105 Pass 561
#0f3 Sample Pass Level AAA for large text5.94
Pass level 2 fo regular text
Fail 111 Pass 510
#0f6 Sample Pass Level AAA for large text6.00
Pass level 2 fo regular text
Fail 116 Fail 459
#0f9 Sample Pass Level AAA for large text6.10
Pass level 2 fo regular text
Fail 122 Fail 408
#0fc Sample Pass Level AAA for large text6.26
Pass level 2 fo regular text
Pass 128 Fail 357
#0ff Sample Pass Level AAA for large text6.48
Pass level 2 fo regular text
Pass 134 Fail 306
#300 Sample Fail2.27
Fail
Fail 29 Fail 255
#303 Sample Fail2.17
Fail
Fail 23 Fail 204
#306 Sample Fail1.94
Fail
Fail 17 Fail 153
#309 Sample Fail1.61
Fail
Fail 11 Fail 102
#30c Sample Fail1.28
Fail
Fail 5 Fail 51
#30f Sample Fail1.00
Fail
Fail 0 Fail 0
#330 Sample Fail1.60
Fail
Fail 0 Fail 306
#333 Sample Fail1.56
Fail
Fail 6 Fail 255
#336 Sample Fail1.43
Fail
Fail 12 Fail 204
#339 Sample Fail1.25
Fail
Fail 18 Fail 153
#33c Sample Fail1.04
Fail
Fail 24 Fail 102
#33f Sample Fail1.18
Fail
Fail 29 Fail 51
#360 Sample Fail1.18
Fail
Fail 30 Fail 357
#363 Sample Fail1.20
Fail
Fail 36 Fail 306
#366 Sample Fail1.25
Fail
Fail 42 Fail 255
#369 Sample Fail1.35
Fail
Fail 48 Fail 204
#36c Sample Fail1.51
Fail
Fail 54 Fail 153
#36f Sample Fail1.74
Fail
Fail 59 Fail 102
#390 Sample Fail2.20
Fail
Fail 60 Fail 408
#393 Sample Fail2.22
Fail
Fail 66 Fail 357
#396 Sample Fail2.28
Fail
Fail 72 Fail 306
#399 Sample Fail2.38
Fail
Fail 78 Fail 255
#39c Sample Fail2.54
Fail
Fail 83 Fail 204
#39f Sample Fail2.76
Fail
Fail 89 Fail 153
#3c0 Sample Pass Level AA for large text3.78
Fail fo regular text
Fail 90 Fail 459
#3c3 Sample Pass Level AA for large text3.80
Fail fo regular text
Fail 96 Fail 408
#3c6 Sample Pass Level AA for large text3.86
Fail fo regular text
Fail 102 Fail 357
#3c9 Sample Pass Level AA for large text3.96
Fail fo regular text
Fail 108 Fail 306
#3cc Sample Pass Level AA for large text4.12
Fail fo regular text
Fail 113 Fail 255
#3cf Sample Pass Level AA for large text4.34
Fail fo regular text
Fail 119 Fail 204
#3f0 Sample Pass Level AAA for large text5.98
Pass level 2 fo regular text
Fail 120 Pass 510
#3f3 Sample Pass Level AAA for large text5.99
Pass level 2 fo regular text
Pass 126 Fail 459
#3f6 Sample Pass Level AAA for large text6.05
Pass level 2 fo regular text
Pass 132 Fail 408
#3f9 Sample Pass Level AAA for large text6.15
Pass level 2 fo regular text
Pass 138 Fail 357
#3fc Sample Pass Level AAA for large text6.31
Pass level 2 fo regular text
Pass 143 Fail 306
#3ff Sample Pass Level AAA for large text6.53
Pass level 2 fo regular text
Pass 149 Fail 255
#600 Sample Fail1.65
Fail
Fail 13 Fail 306
#603 Sample Fail1.60
Fail
Fail 8 Fail 255
#606 Sample Fail1.47
Fail
Fail 2 Fail 204
#609 Sample Fail1.28
Fail
Fail 3 Fail 153
#60c Sample Fail1.06
Fail
Fail 9 Fail 102
#60f Sample Fail1.16
Fail
Fail 15 Fail 51
#630 Sample Fail1.27
Fail
Fail 16 Fail 357
#633 Sample Fail1.24
Fail
Fail 21 Fail 306
#636 Sample Fail1.16
Fail
Fail 27 Fail 255
#639 Sample Fail1.03
Fail
Fail 33 Fail 204
#63c Sample Fail1.13
Fail
Fail 39 Fail 153
#63f Sample Fail1.35
Fail
Fail 45 Fail 102
#660 Sample Fail1.34
Fail
Fail 46 Fail 408
#663 Sample Fail1.36
Fail
Fail 51 Fail 357
#666 Sample Fail1.41
Fail
Fail 57 Fail 306
#669 Sample Fail1.52
Fail
Fail 63 Fail 255
#66c Sample Fail1.68
Fail
Fail 69 Fail 204
#66f Sample Fail1.90
Fail
Fail 75 Fail 153
#690 Sample Fail2.37
Fail
Fail 75 Fail 459
#693 Sample Fail2.39
Fail
Fail 81 Fail 408
#696 Sample Fail2.44
Fail
Fail 87 Fail 357
#699 Sample Fail2.55
Fail
Fail 93 Fail 306
#69c Sample Fail2.71
Fail
Fail 99 Fail 255
#69f Sample Fail2.93
Fail
Fail 105 Fail 204
#6c0 Sample Pass Level AA for large text3.95
Fail fo regular text
Fail 105 Pass 510
#6c3 Sample Pass Level AA for large text3.97
Fail fo regular text
Fail 111 Fail 459
#6c6 Sample Pass Level AA for large text4.02
Fail fo regular text
Fail 117 Fail 408
#6c9 Sample Pass Level AA for large text4.12
Fail fo regular text
Fail 123 Fail 357
#6cc Sample Pass Level AA for large text4.28
Fail fo regular text
Pass 129 Fail 306
#6cf Sample Pass Level AAA for large text4.51
Pass level 2 fo regular text
Pass 134 Fail 255
#6f0 Sample Pass Level AAA for large text6.14
Pass level 2 fo regular text
Pass 135 Pass 561
#6f3 Sample Pass Level AAA for large text6.16
Pass level 2 fo regular text
Pass 141 Pass 510
#6f6 Sample Pass Level AAA for large text6.21
Pass level 2 fo regular text
Pass 147 Fail 459
#6f9 Sample Pass Level AAA for large text6.32
Pass level 2 fo regular text
Pass 153 Fail 408
#6fc Sample Pass Level AAA for large text6.48
Pass level 2 fo regular text
Pass 159 Fail 357
#6ff Sample Pass Level AAA for large text6.70
Pass level 2 fo regular text
Pass 164 Fail 306
#900 Sample Fail1.10
Fail
Fail 1 Fail 357
#903 Sample Fail1.08
Fail
Fail 7 Fail 306
#906 Sample Fail1.02
Fail
Fail 13 Fail 255
#909 Sample Fail1.09
Fail
Fail 18 Fail 204
#90c Sample Fail1.25
Fail
Fail 24 Fail 153
#90f Sample Fail1.47
Fail
Fail 30 Fail 102
#930 Sample Fail1.09
Fail
Fail 31 Fail 408
#933 Sample Fail1.11
Fail
Fail 37 Fail 357
#936 Sample Fail1.17
Fail
Fail 42 Fail 306
#939 Sample Fail1.27
Fail
Fail 48 Fail 255
#93c Sample Fail1.43
Fail
Fail 54 Fail 204
#93f Sample Fail1.65
Fail
Fail 60 Fail 153
#960 Sample Fail1.65
Fail
Fail 61 Fail 459
#963 Sample Fail1.66
Fail
Fail 67 Fail 408
#966 Sample Fail1.72
Fail
Fail 72 Fail 357
#969 Sample Fail1.82
Fail
Fail 78 Fail 306
#96c Sample Fail1.98
Fail
Fail 84 Fail 255
#96f Sample Fail2.20
Fail
Fail 90 Fail 204
#990 Sample Fail2.67
Fail
Fail 91 Pass 510
#993 Sample Fail2.69
Fail
Fail 97 Fail 459
#996 Sample Fail2.75
Fail
Fail 102 Fail 408
#999 Sample Fail2.85
Fail
Fail 108 Fail 357
#99c Sample Pass Level AA for large text3.01
Fail fo regular text
Fail 114 Fail 306
#99f Sample Pass Level AA for large text3.23
Fail fo regular text
Fail 120 Fail 255
#9c0 Sample Pass Level AA for large text4.25
Fail fo regular text
Fail 121 Pass 561
#9c3 Sample Pass Level AA for large text4.27
Fail fo regular text
Pass 126 Pass 510
#9c6 Sample Pass Level AA for large text4.33
Fail fo regular text
Pass 132 Fail 459
#9c9 Sample Pass Level AA for large text4.43
Fail fo regular text
Pass 138 Fail 408
#9cc Sample Pass Level AAA for large text4.59
Pass level 2 fo regular text
Pass 144 Fail 357
#9cf Sample Pass Level AAA for large text4.81
Pass level 2 fo regular text
Pass 150 Fail 306
#9f0 Sample Pass Level AAA for large text6.44
Pass level 2 fo regular text
Pass 151 Pass 612
#9f3 Sample Pass Level AAA for large text6.46
Pass level 2 fo regular text
Pass 156 Pass 561
#9f6 Sample Pass Level AAA for large text6.52
Pass level 2 fo regular text
Pass 162 Pass 510
#9f9 Sample Pass Level AAA for large text6.62
Pass level 2 fo regular text
Pass 168 Fail 459
#9fc Sample Pass Level AAA for large text6.78
Pass level 2 fo regular text
Pass 174 Fail 408
#9ff Sample Pass Level AAA for large text7.00
Pass Level AAA for regular text
Pass 180 Fail 357
#c00 Sample Fail1.38
Fail
Fail 16 Fail 408
#c03 Sample Fail1.40
Fail
Fail 22 Fail 357
#c06 Sample Fail1.45
Fail
Fail 28 Fail 306
#c09 Sample Fail1.56
Fail
Fail 34 Fail 255
#c0c Sample Fail1.72
Fail
Fail 39 Fail 204
#c0f Sample Fail1.94
Fail
Fail 45 Fail 153
#c30 Sample Fail1.56
Fail
Fail 46 Fail 459
#c33 Sample Fail1.58
Fail
Fail 52 Fail 408
#c36 Sample Fail1.64
Fail
Fail 58 Fail 357
#c39 Sample Fail1.74
Fail
Fail 64 Fail 306
#c3c Sample Fail1.90
Fail
Fail 69 Fail 255
#c3f Sample Fail2.12
Fail
Fail 75 Fail 204
#c60 Sample Fail2.12
Fail
Fail 76 Pass 510
#c63 Sample Fail2.13
Fail
Fail 82 Fail 459
#c66 Sample Fail2.19
Fail
Fail 88 Fail 408
#c69 Sample Fail2.29
Fail
Fail 93 Fail 357
#c6c Sample Fail2.45
Fail
Fail 99 Fail 306
#c6f Sample Fail2.67
Fail
Fail 105 Fail 255
#c90 Sample Pass Level AA for large text3.14
Fail fo regular text
Fail 106 Pass 561
#c93 Sample Pass Level AA for large text3.16
Fail fo regular text
Fail 112 Pass 510
#c96 Sample Pass Level AA for large text3.22
Fail fo regular text
Fail 118 Fail 459
#c99 Sample Pass Level AA for large text3.32
Fail fo regular text
Fail 123 Fail 408
#c9c Sample Pass Level AA for large text3.48
Fail fo regular text
Pass 129 Fail 357
#c9f Sample Pass Level AA for large text3.70
Fail fo regular text
Pass 135 Fail 306
#cc0 Sample Pass Level AAA for large text4.72
Pass level 2 fo regular text
Pass 136 Pass 612
#cc3 Sample Pass Level AAA for large text4.74
Pass level 2 fo regular text
Pass 142 Pass 561
#cc6 Sample Pass Level AAA for large text4.80
Pass level 2 fo regular text
Pass 148 Pass 510
#cc9 Sample Pass Level AAA for large text4.90
Pass level 2 fo regular text
Pass 153 Fail 459
#ccc Sample Pass Level AAA for large text5.06
Pass level 2 fo regular text
Pass 159 Fail 408
#ccf Sample Pass Level AAA for large text5.28
Pass level 2 fo regular text
Pass 165 Fail 357
#cf0 Sample Pass Level AAA for large text6.91
Pass level 2 fo regular text
Pass 166 Pass 663
#cf3 Sample Pass Level AAA for large text6.93
Pass level 2 fo regular text
Pass 172 Pass 612
#cf6 Sample Pass Level AAA for large text6.99
Pass level 2 fo regular text
Pass 177 Pass 561
#cf9 Sample Pass Level AAA for large text7.09
Pass Level AAA for regular text
Pass 183 Pass 510
#cfc Sample Pass Level AAA for large text7.25
Pass Level AAA for regular text
Pass 189 Fail 459
#cff Sample Pass Level AAA for large text7.47
Pass Level AAA for regular text
Pass 195 Fail 408
#f00 Sample Fail2.03
Fail
Fail 31 Fail 459
#f03 Sample Fail2.05
Fail
Fail 37 Fail 408
#f06 Sample Fail2.11
Fail
Fail 43 Fail 357
#f09 Sample Fail2.21
Fail
Fail 49 Fail 306
#f0c Sample Fail2.37
Fail
Fail 55 Fail 255
#f0f Sample Fail2.59
Fail
Fail 60 Fail 204
#f30 Sample Fail2.22
Fail
Fail 61 Pass 510
#f33 Sample Fail2.23
Fail
Fail 67 Fail 459
#f36 Sample Fail2.29
Fail
Fail 73 Fail 408
#f39 Sample Fail2.39
Fail
Fail 79 Fail 357
#f3c Sample Fail2.55
Fail
Fail 85 Fail 306
#f3f Sample Fail2.77
Fail
Fail 90 Fail 255
#f60 Sample Fail2.77
Fail
Fail 91 Pass 561
#f63 Sample Fail2.79
Fail
Fail 97 Pass 510
#f66 Sample Fail2.84
Fail
Fail 103 Fail 459
#f69 Sample Fail2.95
Fail
Fail 109 Fail 408
#f6c Sample Pass Level AA for large text3.10
Fail fo regular text
Fail 115 Fail 357
#f6f Sample Pass Level AA for large text3.33
Fail fo regular text
Fail 120 Fail 306
#f90 Sample Pass Level AA for large text3.79
Fail fo regular text
Fail 121 Pass 612
#f93 Sample Pass Level AA for large text3.81
Fail fo regular text
Pass 127 Pass 561
#f96 Sample Pass Level AA for large text3.87
Fail fo regular text
Pass 133 Pass 510
#f99 Sample Pass Level AA for large text3.97
Fail fo regular text
Pass 139 Fail 459
#f9c Sample Pass Level AA for large text4.13
Fail fo regular text
Pass 144 Fail 408
#f9f Sample Pass Level AA for large text4.35
Fail fo regular text
Pass 150 Fail 357
#fc0 Sample Pass Level AAA for large text5.37
Pass level 2 fo regular text
Pass 151 Pass 663
#fc3 Sample Pass Level AAA for large text5.39
Pass level 2 fo regular text
Pass 157 Pass 612
#fc6 Sample Pass Level AAA for large text5.45
Pass level 2 fo regular text
Pass 163 Pass 561
#fc9 Sample Pass Level AAA for large text5.55
Pass level 2 fo regular text
Pass 169 Pass 510
#fcc Sample Pass Level AAA for large text5.71
Pass level 2 fo regular text
Pass 174 Fail 459
#fcf Sample Pass Level AAA for large text5.93
Pass level 2 fo regular text
Pass 180 Fail 408
#ff0 Sample Pass Level AAA for large text7.57
Pass Level AAA for regular text
Pass 181 Pass 714
#ff3 Sample Pass Level AAA for large text7.58
Pass Level AAA for regular text
Pass 187 Pass 663
#ff6 Sample Pass Level AAA for large text7.64
Pass Level AAA for regular text
Pass 193 Pass 612
#ff9 Sample Pass Level AAA for large text7.74
Pass Level AAA for regular text
Pass 199 Pass 561
#ffc Sample Pass Level AAA for large text7.90
Pass Level AAA for regular text
Pass 204 Pass 510
#fff Sample Pass Level AAA for large text8.12
Pass Level AAA for regular text
Pass 210 Fail 459

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.