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 #ff0

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #ff0, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #ff0
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text19.56
Pass Level AAA for regular text
Pass 225 Pass 510
#003 Sample Pass Level AAA for large text18.66
Pass Level AAA for regular text
Pass 220 Pass 561
#006 Sample Pass Level AAA for large text16.41
Pass Level AAA for regular text
Pass 214 Pass 612
#009 Sample Pass Level AAA for large text13.39
Pass Level AAA for regular text
Pass 208 Pass 663
#00c Sample Pass Level AAA for large text10.45
Pass Level AAA for regular text
Pass 202 Pass 714
#00f Sample Pass Level AAA for large text8.00
Pass Level AAA for regular text
Pass 196 Pass 765
#030 Sample Pass Level AAA for large text13.27
Pass Level AAA for regular text
Pass 195 Fail 459
#033 Sample Pass Level AAA for large text12.85
Pass Level AAA for regular text
Pass 190 Pass 510
#036 Sample Pass Level AAA for large text11.74
Pass Level AAA for regular text
Pass 184 Pass 561
#039 Sample Pass Level AAA for large text10.11
Pass Level AAA for regular text
Pass 178 Pass 612
#03c Sample Pass Level AAA for large text8.34
Pass Level AAA for regular text
Pass 172 Pass 663
#03f Sample Pass Level AAA for large text6.70
Pass level 2 fo regular text
Pass 166 Pass 714
#060 Sample Pass Level AAA for large text6.74
Pass level 2 fo regular text
Pass 166 Fail 408
#063 Sample Pass Level AAA for large text6.63
Pass level 2 fo regular text
Pass 160 Fail 459
#066 Sample Pass Level AAA for large text6.32
Pass level 2 fo regular text
Pass 154 Pass 510
#069 Sample Pass Level AAA for large text5.82
Pass level 2 fo regular text
Pass 148 Pass 561
#06c Sample Pass Level AAA for large text5.18
Pass level 2 fo regular text
Pass 142 Pass 612
#06f Sample Pass Level AAA for large text4.50
Pass level 2 fo regular text
Pass 136 Pass 663
#090 Sample Pass Level AA for large text3.52
Fail fo regular text
Pass 136 Fail 357
#093 Sample Pass Level AA for large text3.49
Fail fo regular text
Pass 130 Fail 408
#096 Sample Pass Level AA for large text3.40
Fail fo regular text
Fail 124 Fail 459
#099 Sample Pass Level AA for large text3.25
Fail fo regular text
Fail 118 Pass 510
#09c Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 112 Pass 561
#09f Sample Fail2.79
Fail
Fail 107 Pass 612
#0c0 Sample Fail2.03
Fail
Fail 106 Fail 306
#0c3 Sample Fail2.02
Fail
Fail 100 Fail 357
#0c6 Sample Fail1.99
Fail
Fail 94 Fail 408
#0c9 Sample Fail1.94
Fail
Fail 88 Fail 459
#0cc Sample Fail1.86
Fail
Fail 82 Pass 510
#0cf Sample Fail1.76
Fail
Fail 77 Pass 561
#0f0 Sample Fail1.28
Fail
Fail 76 Fail 255
#0f3 Sample Fail1.27
Fail
Fail 70 Fail 306
#0f6 Sample Fail1.26
Fail
Fail 64 Fail 357
#0f9 Sample Fail1.24
Fail
Fail 58 Fail 408
#0fc Sample Fail1.21
Fail
Fail 52 Fail 459
#0ff Sample Fail1.17
Fail
Fail 47 Pass 510
#300 Sample Pass Level AAA for large text17.14
Pass Level AAA for regular text
Pass 210 Fail 459
#303 Sample Pass Level AAA for large text16.45
Pass Level AAA for regular text
Pass 204 Pass 510
#306 Sample Pass Level AAA for large text14.67
Pass Level AAA for regular text
Pass 199 Pass 561
#309 Sample Pass Level AAA for large text12.22
Pass Level AAA for regular text
Pass 193 Pass 612
#30c Sample Pass Level AAA for large text9.72
Pass Level AAA for regular text
Pass 187 Pass 663
#30f Sample Pass Level AAA for large text7.57
Pass Level AAA for regular text
Pass 181 Pass 714
#330 Sample Pass Level AAA for large text12.11
Pass Level AAA for regular text
Pass 180 Fail 408
#333 Sample Pass Level AAA for large text11.77
Pass Level AAA for regular text
Pass 174 Fail 459
#336 Sample Pass Level AAA for large text10.83
Pass Level AAA for regular text
Pass 169 Pass 510
#339 Sample Pass Level AAA for large text9.43
Pass Level AAA for regular text
Pass 163 Pass 561
#33c Sample Pass Level AAA for large text7.87
Pass Level AAA for regular text
Pass 157 Pass 612
#33f Sample Pass Level AAA for large text6.39
Pass level 2 fo regular text
Pass 151 Pass 663
#360 Sample Pass Level AAA for large text6.43
Pass level 2 fo regular text
Pass 150 Fail 357
#363 Sample Pass Level AAA for large text6.33
Pass level 2 fo regular text
Pass 144 Fail 408
#366 Sample Pass Level AAA for large text6.05
Pass level 2 fo regular text
Pass 139 Fail 459
#369 Sample Pass Level AAA for large text5.59
Pass level 2 fo regular text
Pass 133 Pass 510
#36c Sample Pass Level AAA for large text5.00
Pass level 2 fo regular text
Pass 127 Pass 561
#36f Sample Pass Level AA for large text4.36
Fail fo regular text
Fail 121 Pass 612
#390 Sample Pass Level AA for large text3.43
Fail fo regular text
Fail 120 Fail 306
#393 Sample Pass Level AA for large text3.40
Fail fo regular text
Fail 115 Fail 357
#396 Sample Pass Level AA for large text3.32
Fail fo regular text
Fail 109 Fail 408
#399 Sample Pass Level AA for large text3.18
Fail fo regular text
Fail 103 Fail 459
#39c Sample Fail2.98
Fail
Fail 97 Pass 510
#39f Sample Fail2.74
Fail
Fail 91 Pass 561
#3c0 Sample Fail2.00
Fail
Fail 90 Fail 255
#3c3 Sample Fail1.99
Fail
Fail 85 Fail 306
#3c6 Sample Fail1.96
Fail
Fail 79 Fail 357
#3c9 Sample Fail1.91
Fail
Fail 73 Fail 408
#3cc Sample Fail1.84
Fail
Fail 67 Fail 459
#3cf Sample Fail1.74
Fail
Fail 61 Pass 510
#3f0 Sample Fail1.27
Fail
Fail 60 Fail 204
#3f3 Sample Fail1.26
Fail
Fail 55 Fail 255
#3f6 Sample Fail1.25
Fail
Fail 49 Fail 306
#3f9 Sample Fail1.23
Fail
Fail 43 Fail 357
#3fc Sample Fail1.20
Fail
Fail 37 Fail 408
#3ff Sample Fail1.16
Fail
Fail 31 Fail 459
#600 Sample Pass Level AAA for large text12.50
Pass Level AAA for regular text
Pass 195 Fail 408
#603 Sample Pass Level AAA for large text12.13
Pass Level AAA for regular text
Pass 189 Fail 459
#606 Sample Pass Level AAA for large text11.13
Pass Level AAA for regular text
Pass 183 Pass 510
#609 Sample Pass Level AAA for large text9.66
Pass Level AAA for regular text
Pass 177 Pass 561
#60c Sample Pass Level AAA for large text8.03
Pass Level AAA for regular text
Pass 172 Pass 612
#60f Sample Pass Level AAA for large text6.50
Pass level 2 fo regular text
Pass 166 Pass 663
#630 Sample Pass Level AAA for large text9.59
Pass Level AAA for regular text
Pass 165 Fail 357
#633 Sample Pass Level AAA for large text9.37
Pass Level AAA for regular text
Pass 159 Fail 408
#636 Sample Pass Level AAA for large text8.77
Pass Level AAA for regular text
Pass 153 Fail 459
#639 Sample Pass Level AAA for large text7.83
Pass Level AAA for regular text
Pass 148 Pass 510
#63c Sample Pass Level AAA for large text6.72
Pass level 2 fo regular text
Pass 142 Pass 561
#63f Sample Pass Level AAA for large text5.62
Pass level 2 fo regular text
Pass 136 Pass 612
#660 Sample Pass Level AAA for large text5.64
Pass level 2 fo regular text
Pass 135 Fail 306
#663 Sample Pass Level AAA for large text5.57
Pass level 2 fo regular text
Pass 129 Fail 357
#666 Sample Pass Level AAA for large text5.35
Pass level 2 fo regular text
Fail 123 Fail 408
#669 Sample Pass Level AAA for large text4.98
Pass level 2 fo regular text
Fail 118 Fail 459
#66c Sample Pass Level AAA for large text4.51
Pass level 2 fo regular text
Fail 112 Pass 510
#66f Sample Pass Level AA for large text3.98
Fail fo regular text
Fail 106 Pass 561
#690 Sample Pass Level AA for large text3.19
Fail fo regular text
Fail 105 Fail 255
#693 Sample Pass Level AA for large text3.17
Fail fo regular text
Fail 99 Fail 306
#696 Sample Pass Level AA for large text3.10
Fail fo regular text
Fail 93 Fail 357
#699 Sample Fail2.97
Fail
Fail 88 Fail 408
#69c Sample Fail2.80
Fail
Fail 82 Fail 459
#69f Sample Fail2.58
Fail
Fail 76 Pass 510
#6c0 Sample Fail1.92
Fail
Fail 75 Fail 204
#6c3 Sample Fail1.91
Fail
Fail 69 Fail 255
#6c6 Sample Fail1.88
Fail
Fail 64 Fail 306
#6c9 Sample Fail1.83
Fail
Fail 58 Fail 357
#6cc Sample Fail1.77
Fail
Fail 52 Fail 408
#6cf Sample Fail1.68
Fail
Fail 46 Fail 459
#6f0 Sample Fail1.23
Fail
Fail 45 Fail 153
#6f3 Sample Fail1.23
Fail
Fail 39 Fail 204
#6f6 Sample Fail1.22
Fail
Fail 34 Fail 255
#6f9 Sample Fail1.20
Fail
Fail 28 Fail 306
#6fc Sample Fail1.17
Fail
Fail 22 Fail 357
#6ff Sample Fail1.13
Fail
Fail 16 Fail 408
#900 Sample Pass Level AAA for large text8.31
Pass Level AAA for regular text
Pass 180 Fail 357
#903 Sample Pass Level AAA for large text8.14
Pass Level AAA for regular text
Pass 174 Fail 408
#906 Sample Pass Level AAA for large text7.68
Pass Level AAA for regular text
Pass 168 Fail 459
#909 Sample Pass Level AAA for large text6.95
Pass level 2 fo regular text
Pass 162 Pass 510
#90c Sample Pass Level AAA for large text6.06
Pass level 2 fo regular text
Pass 156 Pass 561
#90f Sample Pass Level AAA for large text5.15
Pass level 2 fo regular text
Pass 151 Pass 612
#930 Sample Pass Level AAA for large text6.92
Pass level 2 fo regular text
Pass 150 Fail 306
#933 Sample Pass Level AAA for large text6.80
Pass level 2 fo regular text
Pass 144 Fail 357
#936 Sample Pass Level AAA for large text6.48
Pass level 2 fo regular text
Pass 138 Fail 408
#939 Sample Pass Level AAA for large text5.95
Pass level 2 fo regular text
Pass 132 Fail 459
#93c Sample Pass Level AAA for large text5.29
Pass level 2 fo regular text
Pass 126 Pass 510
#93f Sample Pass Level AAA for large text4.58
Pass level 2 fo regular text
Fail 121 Pass 561
#960 Sample Pass Level AAA for large text4.60
Pass level 2 fo regular text
Fail 120 Fail 255
#963 Sample Pass Level AAA for large text4.54
Pass level 2 fo regular text
Fail 114 Fail 306
#966 Sample Pass Level AA for large text4.40
Fail fo regular text
Fail 108 Fail 357
#969 Sample Pass Level AA for large text4.15
Fail fo regular text
Fail 102 Fail 408
#96c Sample Pass Level AA for large text3.81
Fail fo regular text
Fail 97 Fail 459
#96f Sample Pass Level AA for large text3.43
Fail fo regular text
Fail 91 Pass 510
#990 Sample Fail2.83
Fail
Fail 90 Fail 204
#993 Sample Fail2.81
Fail
Fail 84 Fail 255
#996 Sample Fail2.75
Fail
Fail 78 Fail 306
#999 Sample Fail2.65
Fail
Fail 72 Fail 357
#99c Sample Fail2.51
Fail
Fail 67 Fail 408
#99f Sample Fail2.34
Fail
Fail 61 Fail 459
#9c0 Sample Fail1.78
Fail
Fail 60 Fail 153
#9c3 Sample Fail1.77
Fail
Fail 54 Fail 204
#9c6 Sample Fail1.75
Fail
Fail 48 Fail 255
#9c9 Sample Fail1.71
Fail
Fail 42 Fail 306
#9cc Sample Fail1.65
Fail
Fail 37 Fail 357
#9cf Sample Fail1.57
Fail
Fail 31 Fail 408
#9f0 Sample Fail1.17
Fail
Fail 30 Fail 102
#9f3 Sample Fail1.17
Fail
Fail 24 Fail 153
#9f6 Sample Fail1.16
Fail
Fail 18 Fail 204
#9f9 Sample Fail1.14
Fail
Fail 13 Fail 255
#9fc Sample Fail1.12
Fail
Fail 7 Fail 306
#9ff Sample Fail1.08
Fail
Fail 1 Fail 357
#c00 Sample Pass Level AAA for large text5.48
Pass level 2 fo regular text
Pass 164 Fail 306
#c03 Sample Pass Level AAA for large text5.41
Pass level 2 fo regular text
Pass 159 Fail 357
#c06 Sample Pass Level AAA for large text5.20
Pass level 2 fo regular text
Pass 153 Fail 408
#c09 Sample Pass Level AAA for large text4.86
Pass level 2 fo regular text
Pass 147 Fail 459
#c0c Sample Pass Level AA for large text4.41
Fail fo regular text
Pass 141 Pass 510
#c0f Sample Pass Level AA for large text3.90
Fail fo regular text
Pass 135 Pass 561
#c30 Sample Pass Level AAA for large text4.84
Pass level 2 fo regular text
Pass 134 Fail 255
#c33 Sample Pass Level AAA for large text4.78
Pass level 2 fo regular text
Pass 129 Fail 306
#c36 Sample Pass Level AAA for large text4.62
Pass level 2 fo regular text
Fail 123 Fail 357
#c39 Sample Pass Level AA for large text4.34
Fail fo regular text
Fail 117 Fail 408
#c3c Sample Pass Level AA for large text3.98
Fail fo regular text
Fail 111 Fail 459
#c3f Sample Pass Level AA for large text3.57
Fail fo regular text
Fail 105 Pass 510
#c60 Sample Pass Level AA for large text3.58
Fail fo regular text
Fail 105 Fail 204
#c63 Sample Pass Level AA for large text3.55
Fail fo regular text
Fail 99 Fail 255
#c66 Sample Pass Level AA for large text3.46
Fail fo regular text
Fail 93 Fail 306
#c69 Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 87 Fail 357
#c6c Sample Pass Level AA for large text3.08
Fail fo regular text
Fail 81 Fail 408
#c6f Sample Fail2.83
Fail
Fail 75 Fail 459
#c90 Sample Fail2.41
Fail
Fail 75 Fail 153
#c93 Sample Fail2.39
Fail
Fail 69 Fail 204
#c96 Sample Fail2.35
Fail
Fail 63 Fail 255
#c99 Sample Fail2.28
Fail
Fail 57 Fail 306
#c9c Sample Fail2.17
Fail
Fail 51 Fail 357
#c9f Sample Fail2.04
Fail
Fail 46 Fail 408
#cc0 Sample Fail1.60
Fail
Fail 45 Fail 102
#cc3 Sample Fail1.60
Fail
Fail 39 Fail 153
#cc6 Sample Fail1.58
Fail
Fail 33 Fail 204
#cc9 Sample Fail1.54
Fail
Fail 27 Fail 255
#ccc Sample Fail1.50
Fail
Fail 21 Fail 306
#ccf Sample Fail1.43
Fail
Fail 16 Fail 357
#cf0 Sample Fail1.09
Fail
Fail 15 Fail 51
#cf3 Sample Fail1.09
Fail
Fail 9 Fail 102
#cf6 Sample Fail1.08
Fail
Fail 3 Fail 153
#cf9 Sample Fail1.07
Fail
Fail 2 Fail 204
#cfc Sample Fail1.04
Fail
Fail 8 Fail 255
#cff Sample Fail1.01
Fail
Fail 13 Fail 306
#f00 Sample Pass Level AA for large text3.72
Fail fo regular text
Pass 149 Fail 255
#f03 Sample Pass Level AA for large text3.69
Fail fo regular text
Pass 143 Fail 306
#f06 Sample Pass Level AA for large text3.59
Fail fo regular text
Pass 138 Fail 357
#f09 Sample Pass Level AA for large text3.42
Fail fo regular text
Pass 132 Fail 408
#f0c Sample Pass Level AA for large text3.19
Fail fo regular text
Pass 126 Fail 459
#f0f Sample Fail2.92
Fail
Fail 120 Pass 510
#f30 Sample Pass Level AA for large text3.42
Fail fo regular text
Fail 119 Fail 204
#f33 Sample Pass Level AA for large text3.39
Fail fo regular text
Fail 113 Fail 255
#f36 Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 108 Fail 306
#f39 Sample Pass Level AA for large text3.16
Fail fo regular text
Fail 102 Fail 357
#f3c Sample Fail2.96
Fail
Fail 96 Fail 408
#f3f Sample Fail2.73
Fail
Fail 90 Fail 459
#f60 Sample Fail2.73
Fail
Fail 89 Fail 153
#f63 Sample Fail2.72
Fail
Fail 83 Fail 204
#f66 Sample Fail2.66
Fail
Fail 78 Fail 255
#f69 Sample Fail2.57
Fail
Fail 72 Fail 306
#f6c Sample Fail2.44
Fail
Fail 66 Fail 357
#f6f Sample Fail2.27
Fail
Fail 60 Fail 408
#f90 Sample Fail1.99
Fail
Fail 59 Fail 102
#f93 Sample Fail1.98
Fail
Fail 54 Fail 153
#f96 Sample Fail1.96
Fail
Fail 48 Fail 204
#f99 Sample Fail1.90
Fail
Fail 42 Fail 255
#f9c Sample Fail1.83
Fail
Fail 36 Fail 306
#f9f Sample Fail1.74
Fail
Fail 30 Fail 357
#fc0 Sample Fail1.41
Fail
Fail 29 Fail 51
#fc3 Sample Fail1.40
Fail
Fail 24 Fail 102
#fc6 Sample Fail1.39
Fail
Fail 18 Fail 153
#fc9 Sample Fail1.36
Fail
Fail 12 Fail 204
#fcc Sample Fail1.32
Fail
Fail 6 Fail 255
#fcf Sample Fail1.28
Fail
Fail 0 Fail 306
#ff0 Sample Fail1.00
Fail
Fail 0 Fail 0
#ff3 Sample Fail1.00
Fail
Fail 5 Fail 51
#ff6 Sample Fail1.01
Fail
Fail 11 Fail 102
#ff9 Sample Fail1.02
Fail
Fail 17 Fail 153
#ffc Sample Fail1.04
Fail
Fail 23 Fail 204
#fff Sample Fail1.07
Fail
Fail 29 Fail 255

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.