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 #fff

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

Luminosity Ratios with background: #fff
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text21.00
Pass Level AAA for regular text
Pass 255 Pass 765
#003 Sample Pass Level AAA for large text20.04
Pass Level AAA for regular text
Pass 249 Pass 714
#006 Sample Pass Level AAA for large text17.62
Pass Level AAA for regular text
Pass 243 Pass 663
#009 Sample Pass Level AAA for large text14.38
Pass Level AAA for regular text
Pass 237 Pass 612
#00c Sample Pass Level AAA for large text11.22
Pass Level AAA for regular text
Pass 231 Pass 561
#00f Sample Pass Level AAA for large text8.59
Pass Level AAA for regular text
Pass 225 Pass 510
#030 Sample Pass Level AAA for large text14.25
Pass Level AAA for regular text
Pass 225 Pass 714
#033 Sample Pass Level AAA for large text13.80
Pass Level AAA for regular text
Pass 219 Pass 663
#036 Sample Pass Level AAA for large text12.61
Pass Level AAA for regular text
Pass 213 Pass 612
#039 Sample Pass Level AAA for large text10.86
Pass Level AAA for regular text
Pass 207 Pass 561
#03c Sample Pass Level AAA for large text8.95
Pass Level AAA for regular text
Pass 201 Pass 510
#03f Sample Pass Level AAA for large text7.20
Pass Level AAA for regular text
Pass 195 Fail 459
#060 Sample Pass Level AAA for large text7.24
Pass Level AAA for regular text
Pass 195 Pass 663
#063 Sample Pass Level AAA for large text7.12
Pass Level AAA for regular text
Pass 189 Pass 612
#066 Sample Pass Level AAA for large text6.79
Pass level 2 fo regular text
Pass 183 Pass 561
#069 Sample Pass Level AAA for large text6.25
Pass level 2 fo regular text
Pass 177 Pass 510
#06c Sample Pass Level AAA for large text5.57
Pass level 2 fo regular text
Pass 171 Fail 459
#06f Sample Pass Level AAA for large text4.83
Pass level 2 fo regular text
Pass 166 Fail 408
#090 Sample Pass Level AA for large text3.78
Fail fo regular text
Pass 165 Pass 612
#093 Sample Pass Level AA for large text3.75
Fail fo regular text
Pass 159 Pass 561
#096 Sample Pass Level AA for large text3.65
Fail fo regular text
Pass 153 Pass 510
#099 Sample Pass Level AA for large text3.49
Fail fo regular text
Pass 147 Fail 459
#09c Sample Pass Level AA for large text3.27
Fail fo regular text
Pass 141 Fail 408
#09f Sample Fail3.00
Fail
Pass 136 Fail 357
#0c0 Sample Fail2.18
Fail
Pass 135 Pass 561
#0c3 Sample Fail2.17
Fail
Pass 129 Pass 510
#0c6 Sample Fail2.14
Fail
Fail 123 Fail 459
#0c9 Sample Fail2.08
Fail
Fail 117 Fail 408
#0cc Sample Fail2.00
Fail
Fail 111 Fail 357
#0cf Sample Fail1.90
Fail
Fail 106 Fail 306
#0f0 Sample Fail1.37
Fail
Fail 105 Pass 510
#0f3 Sample Fail1.37
Fail
Fail 99 Fail 459
#0f6 Sample Fail1.36
Fail
Fail 93 Fail 408
#0f9 Sample Fail1.33
Fail
Fail 87 Fail 357
#0fc Sample Fail1.30
Fail
Fail 82 Fail 306
#0ff Sample Fail1.25
Fail
Fail 76 Fail 255
#300 Sample Pass Level AAA for large text18.41
Pass Level AAA for regular text
Pass 239 Pass 714
#303 Sample Pass Level AAA for large text17.67
Pass Level AAA for regular text
Pass 233 Pass 663
#306 Sample Pass Level AAA for large text15.76
Pass Level AAA for regular text
Pass 228 Pass 612
#309 Sample Pass Level AAA for large text13.12
Pass Level AAA for regular text
Pass 222 Pass 561
#30c Sample Pass Level AAA for large text10.43
Pass Level AAA for regular text
Pass 216 Pass 510
#30f Sample Pass Level AAA for large text8.12
Pass Level AAA for regular text
Pass 210 Fail 459
#330 Sample Pass Level AAA for large text13.01
Pass Level AAA for regular text
Pass 209 Pass 663
#333 Sample Pass Level AAA for large text12.63
Pass Level AAA for regular text
Pass 204 Pass 612
#336 Sample Pass Level AAA for large text11.63
Pass Level AAA for regular text
Pass 198 Pass 561
#339 Sample Pass Level AAA for large text10.12
Pass Level AAA for regular text
Pass 192 Pass 510
#33c Sample Pass Level AAA for large text8.45
Pass Level AAA for regular text
Pass 186 Fail 459
#33f Sample Pass Level AAA for large text6.87
Pass level 2 fo regular text
Pass 180 Fail 408
#360 Sample Pass Level AAA for large text6.90
Pass level 2 fo regular text
Pass 179 Pass 612
#363 Sample Pass Level AAA for large text6.80
Pass level 2 fo regular text
Pass 174 Pass 561
#366 Sample Pass Level AAA for large text6.50
Pass level 2 fo regular text
Pass 168 Pass 510
#369 Sample Pass Level AAA for large text6.00
Pass level 2 fo regular text
Pass 162 Fail 459
#36c Sample Pass Level AAA for large text5.37
Pass level 2 fo regular text
Pass 156 Fail 408
#36f Sample Pass Level AAA for large text4.68
Pass level 2 fo regular text
Pass 150 Fail 357
#390 Sample Pass Level AA for large text3.69
Fail fo regular text
Pass 149 Pass 561
#393 Sample Pass Level AA for large text3.66
Fail fo regular text
Pass 144 Pass 510
#396 Sample Pass Level AA for large text3.57
Fail fo regular text
Pass 138 Fail 459
#399 Sample Pass Level AA for large text3.41
Fail fo regular text
Pass 132 Fail 408
#39c Sample Pass Level AA for large text3.20
Fail fo regular text
Pass 126 Fail 357
#39f Sample Fail2.94
Fail
Fail 120 Fail 306
#3c0 Sample Fail2.15
Fail
Fail 120 Pass 510
#3c3 Sample Fail2.14
Fail
Fail 114 Fail 459
#3c6 Sample Fail2.11
Fail
Fail 108 Fail 408
#3c9 Sample Fail2.05
Fail
Fail 102 Fail 357
#3cc Sample Fail1.97
Fail
Fail 96 Fail 306
#3cf Sample Fail1.87
Fail
Fail 90 Fail 255
#3f0 Sample Fail1.36
Fail
Fail 90 Fail 459
#3f3 Sample Fail1.36
Fail
Fail 84 Fail 408
#3f6 Sample Fail1.34
Fail
Fail 78 Fail 357
#3f9 Sample Fail1.32
Fail
Fail 72 Fail 306
#3fc Sample Fail1.29
Fail
Fail 66 Fail 255
#3ff Sample Fail1.24
Fail
Fail 60 Fail 204
#600 Sample Pass Level AAA for large text13.42
Pass Level AAA for regular text
Pass 224 Pass 663
#603 Sample Pass Level AAA for large text13.02
Pass Level AAA for regular text
Pass 218 Pass 612
#606 Sample Pass Level AAA for large text11.95
Pass Level AAA for regular text
Pass 212 Pass 561
#609 Sample Pass Level AAA for large text10.37
Pass Level AAA for regular text
Pass 207 Pass 510
#60c Sample Pass Level AAA for large text8.62
Pass Level AAA for regular text
Pass 201 Fail 459
#60f Sample Pass Level AAA for large text6.98
Pass level 2 fo regular text
Pass 195 Fail 408
#630 Sample Pass Level AAA for large text10.30
Pass Level AAA for regular text
Pass 194 Pass 612
#633 Sample Pass Level AAA for large text10.07
Pass Level AAA for regular text
Pass 188 Pass 561
#636 Sample Pass Level AAA for large text9.42
Pass Level AAA for regular text
Pass 182 Pass 510
#639 Sample Pass Level AAA for large text8.41
Pass Level AAA for regular text
Pass 177 Fail 459
#63c Sample Pass Level AAA for large text7.22
Pass Level AAA for regular text
Pass 171 Fail 408
#63f Sample Pass Level AAA for large text6.03
Pass level 2 fo regular text
Pass 165 Fail 357
#660 Sample Pass Level AAA for large text6.06
Pass level 2 fo regular text
Pass 164 Pass 561
#663 Sample Pass Level AAA for large text5.98
Pass level 2 fo regular text
Pass 158 Pass 510
#666 Sample Pass Level AAA for large text5.74
Pass level 2 fo regular text
Pass 153 Fail 459
#669 Sample Pass Level AAA for large text5.35
Pass level 2 fo regular text
Pass 147 Fail 408
#66c Sample Pass Level AAA for large text4.84
Pass level 2 fo regular text
Pass 141 Fail 357
#66f Sample Pass Level AA for large text4.28
Fail fo regular text
Pass 135 Fail 306
#690 Sample Pass Level AA for large text3.43
Fail fo regular text
Pass 134 Pass 510
#693 Sample Pass Level AA for large text3.40
Fail fo regular text
Pass 128 Fail 459
#696 Sample Pass Level AA for large text3.33
Fail fo regular text
Fail 123 Fail 408
#699 Sample Pass Level AA for large text3.19
Fail fo regular text
Fail 117 Fail 357
#69c Sample Pass Level AA for large text3.00
Fail fo regular text
Fail 111 Fail 306
#69f Sample Fail2.78
Fail
Fail 105 Fail 255
#6c0 Sample Fail2.06
Fail
Fail 104 Fail 459
#6c3 Sample Fail2.05
Fail
Fail 98 Fail 408
#6c6 Sample Fail2.02
Fail
Fail 93 Fail 357
#6c9 Sample Fail1.97
Fail
Fail 87 Fail 306
#6cc Sample Fail1.90
Fail
Fail 81 Fail 255
#6cf Sample Fail1.80
Fail
Fail 75 Fail 204
#6f0 Sample Fail1.32
Fail
Fail 74 Fail 408
#6f3 Sample Fail1.32
Fail
Fail 69 Fail 357
#6f6 Sample Fail1.31
Fail
Fail 63 Fail 306
#6f9 Sample Fail1.29
Fail
Fail 57 Fail 255
#6fc Sample Fail1.25
Fail
Fail 51 Fail 204
#6ff Sample Fail1.21
Fail
Fail 45 Fail 153
#900 Sample Pass Level AAA for large text8.92
Pass Level AAA for regular text
Pass 209 Pass 612
#903 Sample Pass Level AAA for large text8.74
Pass Level AAA for regular text
Pass 203 Pass 561
#906 Sample Pass Level AAA for large text8.25
Pass Level AAA for regular text
Pass 197 Pass 510
#909 Sample Pass Level AAA for large text7.46
Pass Level AAA for regular text
Pass 191 Fail 459
#90c Sample Pass Level AAA for large text6.51
Pass level 2 fo regular text
Pass 185 Fail 408
#90f Sample Pass Level AAA for large text5.53
Pass level 2 fo regular text
Pass 180 Fail 357
#930 Sample Pass Level AAA for large text7.43
Pass Level AAA for regular text
Pass 179 Pass 561
#933 Sample Pass Level AAA for large text7.30
Pass Level AAA for regular text
Pass 173 Pass 510
#936 Sample Pass Level AAA for large text6.95
Pass level 2 fo regular text
Pass 167 Fail 459
#939 Sample Pass Level AAA for large text6.39
Pass level 2 fo regular text
Pass 161 Fail 408
#93c Sample Pass Level AAA for large text5.68
Pass level 2 fo regular text
Pass 156 Fail 357
#93f Sample Pass Level AAA for large text4.92
Pass level 2 fo regular text
Pass 150 Fail 306
#960 Sample Pass Level AAA for large text4.94
Pass level 2 fo regular text
Pass 149 Pass 510
#963 Sample Pass Level AAA for large text4.88
Pass level 2 fo regular text
Pass 143 Fail 459
#966 Sample Pass Level AAA for large text4.72
Pass level 2 fo regular text
Pass 137 Fail 408
#969 Sample Pass Level AA for large text4.45
Fail fo regular text
Pass 131 Fail 357
#96c Sample Pass Level AA for large text4.10
Fail fo regular text
Pass 126 Fail 306
#96f Sample Pass Level AA for large text3.68
Fail fo regular text
Fail 120 Fail 255
#990 Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 119 Fail 459
#993 Sample Pass Level AA for large text3.02
Fail fo regular text
Fail 113 Fail 408
#996 Sample Fail2.96
Fail
Fail 107 Fail 357
#999 Sample Fail2.85
Fail
Fail 102 Fail 306
#99c Sample Fail2.70
Fail
Fail 96 Fail 255
#99f Sample Fail2.51
Fail
Fail 90 Fail 204
#9c0 Sample Fail1.91
Fail
Fail 89 Fail 408
#9c3 Sample Fail1.90
Fail
Fail 83 Fail 357
#9c6 Sample Fail1.88
Fail
Fail 77 Fail 306
#9c9 Sample Fail1.83
Fail
Fail 72 Fail 255
#9cc Sample Fail1.77
Fail
Fail 66 Fail 204
#9cf Sample Fail1.69
Fail
Fail 60 Fail 153
#9f0 Sample Fail1.26
Fail
Fail 59 Fail 357
#9f3 Sample Fail1.26
Fail
Fail 53 Fail 306
#9f6 Sample Fail1.25
Fail
Fail 47 Fail 255
#9f9 Sample Fail1.23
Fail
Fail 42 Fail 204
#9fc Sample Fail1.20
Fail
Fail 36 Fail 153
#9ff Sample Fail1.16
Fail
Fail 30 Fail 102
#c00 Sample Pass Level AAA for large text5.89
Pass level 2 fo regular text
Pass 194 Pass 561
#c03 Sample Pass Level AAA for large text5.81
Pass level 2 fo regular text
Pass 188 Pass 510
#c06 Sample Pass Level AAA for large text5.59
Pass level 2 fo regular text
Pass 182 Fail 459
#c09 Sample Pass Level AAA for large text5.21
Pass level 2 fo regular text
Pass 176 Fail 408
#c0c Sample Pass Level AAA for large text4.73
Pass level 2 fo regular text
Pass 170 Fail 357
#c0f Sample Pass Level AA for large text4.19
Fail fo regular text
Pass 164 Fail 306
#c30 Sample Pass Level AAA for large text5.20
Pass level 2 fo regular text
Pass 164 Pass 510
#c33 Sample Pass Level AAA for large text5.14
Pass level 2 fo regular text
Pass 158 Fail 459
#c36 Sample Pass Level AAA for large text4.96
Pass level 2 fo regular text
Pass 152 Fail 408
#c39 Sample Pass Level AAA for large text4.67
Pass level 2 fo regular text
Pass 146 Fail 357
#c3c Sample Pass Level AA for large text4.27
Fail fo regular text
Pass 140 Fail 306
#c3f Sample Pass Level AA for large text3.83
Fail fo regular text
Pass 134 Fail 255
#c60 Sample Pass Level AA for large text3.84
Fail fo regular text
Pass 134 Fail 459
#c63 Sample Pass Level AA for large text3.81
Fail fo regular text
Pass 128 Fail 408
#c66 Sample Pass Level AA for large text3.71
Fail fo regular text
Fail 122 Fail 357
#c69 Sample Pass Level AA for large text3.54
Fail fo regular text
Fail 116 Fail 306
#c6c Sample Pass Level AA for large text3.31
Fail fo regular text
Fail 110 Fail 255
#c6f Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 105 Fail 204
#c90 Sample Fail2.58
Fail
Fail 104 Fail 408
#c93 Sample Fail2.57
Fail
Fail 98 Fail 357
#c96 Sample Fail2.53
Fail
Fail 92 Fail 306
#c99 Sample Fail2.45
Fail
Fail 86 Fail 255
#c9c Sample Fail2.33
Fail
Fail 80 Fail 204
#c9f Sample Fail2.19
Fail
Fail 75 Fail 153
#cc0 Sample Fail1.72
Fail
Fail 74 Fail 357
#cc3 Sample Fail1.71
Fail
Fail 68 Fail 306
#cc6 Sample Fail1.69
Fail
Fail 62 Fail 255
#cc9 Sample Fail1.66
Fail
Fail 56 Fail 204
#ccc Sample Fail1.61
Fail
Fail 51 Fail 153
#ccf Sample Fail1.54
Fail
Fail 45 Fail 102
#cf0 Sample Fail1.18
Fail
Fail 44 Fail 306
#cf3 Sample Fail1.17
Fail
Fail 38 Fail 255
#cf6 Sample Fail1.16
Fail
Fail 32 Fail 204
#cf9 Sample Fail1.15
Fail
Fail 26 Fail 153
#cfc Sample Fail1.12
Fail
Fail 21 Fail 102
#cff Sample Fail1.09
Fail
Fail 15 Fail 51
#f00 Sample Pass Level AA for large text4.00
Fail fo regular text
Pass 178 Pass 510
#f03 Sample Pass Level AA for large text3.96
Fail fo regular text
Pass 172 Fail 459
#f06 Sample Pass Level AA for large text3.86
Fail fo regular text
Pass 167 Fail 408
#f09 Sample Pass Level AA for large text3.68
Fail fo regular text
Pass 161 Fail 357
#f0c Sample Pass Level AA for large text3.43
Fail fo regular text
Pass 155 Fail 306
#f0f Sample Pass Level AA for large text3.14
Fail fo regular text
Pass 149 Fail 255
#f30 Sample Pass Level AA for large text3.67
Fail fo regular text
Pass 148 Fail 459
#f33 Sample Pass Level AA for large text3.64
Fail fo regular text
Pass 143 Fail 408
#f36 Sample Pass Level AA for large text3.55
Fail fo regular text
Pass 137 Fail 357
#f39 Sample Pass Level AA for large text3.40
Fail fo regular text
Pass 131 Fail 306
#f3c Sample Pass Level AA for large text3.18
Fail fo regular text
Fail 125 Fail 255
#f3f Sample Fail2.93
Fail
Fail 119 Fail 204
#f60 Sample Fail2.94
Fail
Fail 118 Fail 408
#f63 Sample Fail2.92
Fail
Fail 113 Fail 357
#f66 Sample Fail2.86
Fail
Fail 107 Fail 306
#f69 Sample Fail2.76
Fail
Fail 101 Fail 255
#f6c Sample Fail2.62
Fail
Fail 95 Fail 204
#f6f Sample Fail2.44
Fail
Fail 89 Fail 153
#f90 Sample Fail2.14
Fail
Fail 88 Fail 357
#f93 Sample Fail2.13
Fail
Fail 83 Fail 306
#f96 Sample Fail2.10
Fail
Fail 77 Fail 255
#f99 Sample Fail2.05
Fail
Fail 71 Fail 204
#f9c Sample Fail1.97
Fail
Fail 65 Fail 153
#f9f Sample Fail1.87
Fail
Fail 59 Fail 102
#fc0 Sample Fail1.51
Fail
Fail 59 Fail 306
#fc3 Sample Fail1.51
Fail
Fail 53 Fail 255
#fc6 Sample Fail1.49
Fail
Fail 47 Fail 204
#fc9 Sample Fail1.46
Fail
Fail 41 Fail 153
#fcc Sample Fail1.42
Fail
Fail 35 Fail 102
#fcf Sample Fail1.37
Fail
Fail 29 Fail 51
#ff0 Sample Fail1.07
Fail
Fail 29 Fail 255
#ff3 Sample Fail1.07
Fail
Fail 23 Fail 204
#ff6 Sample Fail1.06
Fail
Fail 17 Fail 153
#ff9 Sample Fail1.05
Fail
Fail 11 Fail 102
#ffc Sample Fail1.03
Fail
Fail 5 Fail 51
#fff Sample Fail1.00
Fail
Fail 0 Fail 0

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.