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 #ff9

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #ff9, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #ff9
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text20.02
Pass Level AAA for regular text
Pass 243 Pass 663
#003 Sample Pass Level AAA for large text19.10
Pass Level AAA for regular text
Pass 237 Pass 612
#006 Sample Pass Level AAA for large text16.79
Pass Level AAA for regular text
Pass 231 Pass 561
#009 Sample Pass Level AAA for large text13.71
Pass Level AAA for regular text
Pass 225 Pass 510
#00c Sample Pass Level AAA for large text10.69
Pass Level AAA for regular text
Pass 220 Pass 561
#00f Sample Pass Level AAA for large text8.19
Pass Level AAA for regular text
Pass 214 Pass 612
#030 Sample Pass Level AAA for large text13.58
Pass Level AAA for regular text
Pass 213 Pass 612
#033 Sample Pass Level AAA for large text13.16
Pass Level AAA for regular text
Pass 207 Pass 561
#036 Sample Pass Level AAA for large text12.02
Pass Level AAA for regular text
Pass 201 Pass 510
#039 Sample Pass Level AAA for large text10.35
Pass Level AAA for regular text
Pass 195 Fail 459
#03c Sample Pass Level AAA for large text8.53
Pass Level AAA for regular text
Pass 190 Pass 510
#03f Sample Pass Level AAA for large text6.86
Pass level 2 fo regular text
Pass 184 Pass 561
#060 Sample Pass Level AAA for large text6.90
Pass level 2 fo regular text
Pass 183 Pass 561
#063 Sample Pass Level AAA for large text6.79
Pass level 2 fo regular text
Pass 177 Pass 510
#066 Sample Pass Level AAA for large text6.47
Pass level 2 fo regular text
Pass 171 Fail 459
#069 Sample Pass Level AAA for large text5.96
Pass level 2 fo regular text
Pass 166 Fail 408
#06c Sample Pass Level AAA for large text5.31
Pass level 2 fo regular text
Pass 160 Fail 459
#06f Sample Pass Level AAA for large text4.61
Pass level 2 fo regular text
Pass 154 Pass 510
#090 Sample Pass Level AA for large text3.60
Fail fo regular text
Pass 153 Pass 510
#093 Sample Pass Level AA for large text3.57
Fail fo regular text
Pass 147 Fail 459
#096 Sample Pass Level AA for large text3.48
Fail fo regular text
Pass 141 Fail 408
#099 Sample Pass Level AA for large text3.33
Fail fo regular text
Pass 136 Fail 357
#09c Sample Pass Level AA for large text3.11
Fail fo regular text
Pass 130 Fail 408
#09f Sample Fail2.86
Fail
Fail 124 Fail 459
#0c0 Sample Fail2.08
Fail
Fail 123 Fail 459
#0c3 Sample Fail2.07
Fail
Fail 117 Fail 408
#0c6 Sample Fail2.04
Fail
Fail 111 Fail 357
#0c9 Sample Fail1.98
Fail
Fail 106 Fail 306
#0cc Sample Fail1.90
Fail
Fail 100 Fail 357
#0cf Sample Fail1.81
Fail
Fail 94 Fail 408
#0f0 Sample Fail1.31
Fail
Fail 93 Fail 408
#0f3 Sample Fail1.30
Fail
Fail 87 Fail 357
#0f6 Sample Fail1.29
Fail
Fail 82 Fail 306
#0f9 Sample Fail1.27
Fail
Fail 76 Fail 255
#0fc Sample Fail1.24
Fail
Fail 70 Fail 306
#0ff Sample Fail1.20
Fail
Fail 64 Fail 357
#300 Sample Pass Level AAA for large text17.55
Pass Level AAA for regular text
Pass 228 Pass 612
#303 Sample Pass Level AAA for large text16.84
Pass Level AAA for regular text
Pass 222 Pass 561
#306 Sample Pass Level AAA for large text15.02
Pass Level AAA for regular text
Pass 216 Pass 510
#309 Sample Pass Level AAA for large text12.50
Pass Level AAA for regular text
Pass 210 Fail 459
#30c Sample Pass Level AAA for large text9.94
Pass Level AAA for regular text
Pass 204 Pass 510
#30f Sample Pass Level AAA for large text7.74
Pass Level AAA for regular text
Pass 199 Pass 561
#330 Sample Pass Level AAA for large text12.40
Pass Level AAA for regular text
Pass 198 Pass 561
#333 Sample Pass Level AAA for large text12.04
Pass Level AAA for regular text
Pass 192 Pass 510
#336 Sample Pass Level AAA for large text11.08
Pass Level AAA for regular text
Pass 186 Fail 459
#339 Sample Pass Level AAA for large text9.65
Pass Level AAA for regular text
Pass 180 Fail 408
#33c Sample Pass Level AAA for large text8.05
Pass Level AAA for regular text
Pass 174 Fail 459
#33f Sample Pass Level AAA for large text6.54
Pass level 2 fo regular text
Pass 169 Pass 510
#360 Sample Pass Level AAA for large text6.58
Pass level 2 fo regular text
Pass 168 Pass 510
#363 Sample Pass Level AAA for large text6.48
Pass level 2 fo regular text
Pass 162 Fail 459
#366 Sample Pass Level AAA for large text6.19
Pass level 2 fo regular text
Pass 156 Fail 408
#369 Sample Pass Level AAA for large text5.72
Pass level 2 fo regular text
Pass 150 Fail 357
#36c Sample Pass Level AAA for large text5.11
Pass level 2 fo regular text
Pass 144 Fail 408
#36f Sample Pass Level AA for large text4.46
Fail fo regular text
Pass 139 Fail 459
#390 Sample Pass Level AA for large text3.51
Fail fo regular text
Pass 138 Fail 459
#393 Sample Pass Level AA for large text3.48
Fail fo regular text
Pass 132 Fail 408
#396 Sample Pass Level AA for large text3.40
Fail fo regular text
Pass 126 Fail 357
#399 Sample Pass Level AA for large text3.25
Fail fo regular text
Fail 120 Fail 306
#39c Sample Pass Level AA for large text3.05
Fail fo regular text
Fail 115 Fail 357
#39f Sample Fail2.80
Fail
Fail 109 Fail 408
#3c0 Sample Fail2.05
Fail
Fail 108 Fail 408
#3c3 Sample Fail2.04
Fail
Fail 102 Fail 357
#3c6 Sample Fail2.01
Fail
Fail 96 Fail 306
#3c9 Sample Fail1.96
Fail
Fail 90 Fail 255
#3cc Sample Fail1.88
Fail
Fail 85 Fail 306
#3cf Sample Fail1.78
Fail
Fail 79 Fail 357
#3f0 Sample Fail1.30
Fail
Fail 78 Fail 357
#3f3 Sample Fail1.29
Fail
Fail 72 Fail 306
#3f6 Sample Fail1.28
Fail
Fail 66 Fail 255
#3f9 Sample Fail1.26
Fail
Fail 60 Fail 204
#3fc Sample Fail1.23
Fail
Fail 55 Fail 255
#3ff Sample Fail1.19
Fail
Fail 49 Fail 306
#600 Sample Pass Level AAA for large text12.79
Pass Level AAA for regular text
Pass 212 Pass 561
#603 Sample Pass Level AAA for large text12.41
Pass Level AAA for regular text
Pass 207 Pass 510
#606 Sample Pass Level AAA for large text11.39
Pass Level AAA for regular text
Pass 201 Fail 459
#609 Sample Pass Level AAA for large text9.88
Pass Level AAA for regular text
Pass 195 Fail 408
#60c Sample Pass Level AAA for large text8.21
Pass Level AAA for regular text
Pass 189 Fail 459
#60f Sample Pass Level AAA for large text6.65
Pass level 2 fo regular text
Pass 183 Pass 510
#630 Sample Pass Level AAA for large text9.82
Pass Level AAA for regular text
Pass 182 Pass 510
#633 Sample Pass Level AAA for large text9.59
Pass Level AAA for regular text
Pass 177 Fail 459
#636 Sample Pass Level AAA for large text8.97
Pass Level AAA for regular text
Pass 171 Fail 408
#639 Sample Pass Level AAA for large text8.01
Pass Level AAA for regular text
Pass 165 Fail 357
#63c Sample Pass Level AAA for large text6.88
Pass level 2 fo regular text
Pass 159 Fail 408
#63f Sample Pass Level AAA for large text5.75
Pass level 2 fo regular text
Pass 153 Fail 459
#660 Sample Pass Level AAA for large text5.78
Pass level 2 fo regular text
Pass 153 Fail 459
#663 Sample Pass Level AAA for large text5.70
Pass level 2 fo regular text
Pass 147 Fail 408
#666 Sample Pass Level AAA for large text5.47
Pass level 2 fo regular text
Pass 141 Fail 357
#669 Sample Pass Level AAA for large text5.10
Pass level 2 fo regular text
Pass 135 Fail 306
#66c Sample Pass Level AAA for large text4.61
Pass level 2 fo regular text
Pass 129 Fail 357
#66f Sample Pass Level AA for large text4.08
Fail fo regular text
Fail 123 Fail 408
#690 Sample Pass Level AA for large text3.27
Fail fo regular text
Fail 123 Fail 408
#693 Sample Pass Level AA for large text3.24
Fail fo regular text
Fail 117 Fail 357
#696 Sample Pass Level AA for large text3.17
Fail fo regular text
Fail 111 Fail 306
#699 Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 105 Fail 255
#69c Sample Fail2.86
Fail
Fail 99 Fail 306
#69f Sample Fail2.65
Fail
Fail 93 Fail 357
#6c0 Sample Fail1.96
Fail
Fail 93 Fail 357
#6c3 Sample Fail1.95
Fail
Fail 87 Fail 306
#6c6 Sample Fail1.93
Fail
Fail 81 Fail 255
#6c9 Sample Fail1.88
Fail
Fail 75 Fail 204
#6cc Sample Fail1.81
Fail
Fail 69 Fail 255
#6cf Sample Fail1.72
Fail
Fail 64 Fail 306
#6f0 Sample Fail1.26
Fail
Fail 63 Fail 306
#6f3 Sample Fail1.26
Fail
Fail 57 Fail 255
#6f6 Sample Fail1.25
Fail
Fail 51 Fail 204
#6f9 Sample Fail1.23
Fail
Fail 45 Fail 153
#6fc Sample Fail1.20
Fail
Fail 39 Fail 204
#6ff Sample Fail1.16
Fail
Fail 34 Fail 255
#900 Sample Pass Level AAA for large text8.50
Pass Level AAA for regular text
Pass 197 Pass 510
#903 Sample Pass Level AAA for large text8.33
Pass Level AAA for regular text
Pass 191 Fail 459
#906 Sample Pass Level AAA for large text7.86
Pass Level AAA for regular text
Pass 185 Fail 408
#909 Sample Pass Level AAA for large text7.11
Pass Level AAA for regular text
Pass 180 Fail 357
#90c Sample Pass Level AAA for large text6.20
Pass level 2 fo regular text
Pass 174 Fail 408
#90f Sample Pass Level AAA for large text5.27
Pass level 2 fo regular text
Pass 168 Fail 459
#930 Sample Pass Level AAA for large text7.08
Pass Level AAA for regular text
Pass 167 Fail 459
#933 Sample Pass Level AAA for large text6.96
Pass level 2 fo regular text
Pass 161 Fail 408
#936 Sample Pass Level AAA for large text6.63
Pass level 2 fo regular text
Pass 156 Fail 357
#939 Sample Pass Level AAA for large text6.09
Pass level 2 fo regular text
Pass 150 Fail 306
#93c Sample Pass Level AAA for large text5.41
Pass level 2 fo regular text
Pass 144 Fail 357
#93f Sample Pass Level AAA for large text4.69
Pass level 2 fo regular text
Pass 138 Fail 408
#960 Sample Pass Level AAA for large text4.70
Pass level 2 fo regular text
Pass 137 Fail 408
#963 Sample Pass Level AAA for large text4.65
Pass level 2 fo regular text
Pass 131 Fail 357
#966 Sample Pass Level AAA for large text4.50
Pass level 2 fo regular text
Pass 126 Fail 306
#969 Sample Pass Level AA for large text4.25
Fail fo regular text
Fail 120 Fail 255
#96c Sample Pass Level AA for large text3.90
Fail fo regular text
Fail 114 Fail 306
#96f Sample Pass Level AA for large text3.51
Fail fo regular text
Fail 108 Fail 357
#990 Sample Fail2.90
Fail
Fail 107 Fail 357
#993 Sample Fail2.88
Fail
Fail 102 Fail 306
#996 Sample Fail2.82
Fail
Fail 96 Fail 255
#999 Sample Fail2.72
Fail
Fail 90 Fail 204
#99c Sample Fail2.57
Fail
Fail 84 Fail 255
#99f Sample Fail2.40
Fail
Fail 78 Fail 306
#9c0 Sample Fail1.82
Fail
Fail 77 Fail 306
#9c3 Sample Fail1.81
Fail
Fail 72 Fail 255
#9c6 Sample Fail1.79
Fail
Fail 66 Fail 204
#9c9 Sample Fail1.75
Fail
Fail 60 Fail 153
#9cc Sample Fail1.69
Fail
Fail 54 Fail 204
#9cf Sample Fail1.61
Fail
Fail 48 Fail 255
#9f0 Sample Fail1.20
Fail
Fail 47 Fail 255
#9f3 Sample Fail1.20
Fail
Fail 42 Fail 204
#9f6 Sample Fail1.19
Fail
Fail 36 Fail 153
#9f9 Sample Fail1.17
Fail
Fail 30 Fail 102
#9fc Sample Fail1.14
Fail
Fail 24 Fail 153
#9ff Sample Fail1.11
Fail
Fail 18 Fail 204
#c00 Sample Pass Level AAA for large text5.61
Pass level 2 fo regular text
Pass 182 Fail 459
#c03 Sample Pass Level AAA for large text5.54
Pass level 2 fo regular text
Pass 176 Fail 408
#c06 Sample Pass Level AAA for large text5.32
Pass level 2 fo regular text
Pass 170 Fail 357
#c09 Sample Pass Level AAA for large text4.97
Pass level 2 fo regular text
Pass 164 Fail 306
#c0c Sample Pass Level AAA for large text4.51
Pass level 2 fo regular text
Pass 159 Fail 357
#c0f Sample Pass Level AA for large text3.99
Fail fo regular text
Pass 153 Fail 408
#c30 Sample Pass Level AAA for large text4.95
Pass level 2 fo regular text
Pass 152 Fail 408
#c33 Sample Pass Level AAA for large text4.90
Pass level 2 fo regular text
Pass 146 Fail 357
#c36 Sample Pass Level AAA for large text4.73
Pass level 2 fo regular text
Pass 140 Fail 306
#c39 Sample Pass Level AA for large text4.45
Fail fo regular text
Pass 134 Fail 255
#c3c Sample Pass Level AA for large text4.07
Fail fo regular text
Pass 129 Fail 306
#c3f Sample Pass Level AA for large text3.65
Fail fo regular text
Fail 123 Fail 357
#c60 Sample Pass Level AA for large text3.66
Fail fo regular text
Fail 122 Fail 357
#c63 Sample Pass Level AA for large text3.63
Fail fo regular text
Fail 116 Fail 306
#c66 Sample Pass Level AA for large text3.54
Fail fo regular text
Fail 110 Fail 255
#c69 Sample Pass Level AA for large text3.38
Fail fo regular text
Fail 105 Fail 204
#c6c Sample Pass Level AA for large text3.16
Fail fo regular text
Fail 99 Fail 255
#c6f Sample Fail2.90
Fail
Fail 93 Fail 306
#c90 Sample Fail2.46
Fail
Fail 92 Fail 306
#c93 Sample Fail2.45
Fail
Fail 86 Fail 255
#c96 Sample Fail2.41
Fail
Fail 80 Fail 204
#c99 Sample Fail2.33
Fail
Fail 75 Fail 153
#c9c Sample Fail2.23
Fail
Fail 69 Fail 204
#c9f Sample Fail2.09
Fail
Fail 63 Fail 255
#cc0 Sample Fail1.64
Fail
Fail 62 Fail 255
#cc3 Sample Fail1.63
Fail
Fail 56 Fail 204
#cc6 Sample Fail1.61
Fail
Fail 51 Fail 153
#cc9 Sample Fail1.58
Fail
Fail 45 Fail 102
#ccc Sample Fail1.53
Fail
Fail 39 Fail 153
#ccf Sample Fail1.47
Fail
Fail 33 Fail 204
#cf0 Sample Fail1.12
Fail
Fail 32 Fail 204
#cf3 Sample Fail1.12
Fail
Fail 26 Fail 153
#cf6 Sample Fail1.11
Fail
Fail 21 Fail 102
#cf9 Sample Fail1.09
Fail
Fail 15 Fail 51
#cfc Sample Fail1.07
Fail
Fail 9 Fail 102
#cff Sample Fail1.04
Fail
Fail 3 Fail 153
#f00 Sample Pass Level AA for large text3.81
Fail fo regular text
Pass 167 Fail 408
#f03 Sample Pass Level AA for large text3.78
Fail fo regular text
Pass 161 Fail 357
#f06 Sample Pass Level AA for large text3.68
Fail fo regular text
Pass 155 Fail 306
#f09 Sample Pass Level AA for large text3.50
Fail fo regular text
Pass 149 Fail 255
#f0c Sample Pass Level AA for large text3.27
Fail fo regular text
Pass 143 Fail 306
#f0f Sample Fail2.99
Fail
Pass 138 Fail 357
#f30 Sample Pass Level AA for large text3.50
Fail fo regular text
Pass 137 Fail 357
#f33 Sample Pass Level AA for large text3.47
Fail fo regular text
Pass 131 Fail 306
#f36 Sample Pass Level AA for large text3.38
Fail fo regular text
Fail 125 Fail 255
#f39 Sample Pass Level AA for large text3.24
Fail fo regular text
Fail 119 Fail 204
#f3c Sample Pass Level AA for large text3.03
Fail fo regular text
Fail 113 Fail 255
#f3f Sample Fail2.79
Fail
Fail 108 Fail 306
#f60 Sample Fail2.80
Fail
Fail 107 Fail 306
#f63 Sample Fail2.78
Fail
Fail 101 Fail 255
#f66 Sample Fail2.73
Fail
Fail 95 Fail 204
#f69 Sample Fail2.63
Fail
Fail 89 Fail 153
#f6c Sample Fail2.49
Fail
Fail 83 Fail 204
#f6f Sample Fail2.33
Fail
Fail 78 Fail 255
#f90 Sample Fail2.04
Fail
Fail 77 Fail 255
#f93 Sample Fail2.03
Fail
Fail 71 Fail 204
#f96 Sample Fail2.00
Fail
Fail 65 Fail 153
#f99 Sample Fail1.95
Fail
Fail 59 Fail 102
#f9c Sample Fail1.87
Fail
Fail 54 Fail 153
#f9f Sample Fail1.78
Fail
Fail 48 Fail 204
#fc0 Sample Fail1.44
Fail
Fail 47 Fail 204
#fc3 Sample Fail1.44
Fail
Fail 41 Fail 153
#fc6 Sample Fail1.42
Fail
Fail 35 Fail 102
#fc9 Sample Fail1.39
Fail
Fail 29 Fail 51
#fcc Sample Fail1.36
Fail
Fail 24 Fail 102
#fcf Sample Fail1.31
Fail
Fail 18 Fail 153
#ff0 Sample Fail1.02
Fail
Fail 17 Fail 153
#ff3 Sample Fail1.02
Fail
Fail 11 Fail 102
#ff6 Sample Fail1.01
Fail
Fail 5 Fail 51
#ff9 Sample Fail1.00
Fail
Fail 0 Fail 0
#ffc Sample Fail1.02
Fail
Fail 5 Fail 51
#fff Sample Fail1.05
Fail
Fail 11 Fail 102

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.