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 #cc0

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #cc0, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #cc0
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text12.20
Pass Level AAA for regular text
Pass 180 Fail 408
#003 Sample Pass Level AAA for large text11.65
Pass Level AAA for regular text
Pass 174 Fail 459
#006 Sample Pass Level AAA for large text10.24
Pass Level AAA for regular text
Pass 169 Pass 510
#009 Sample Pass Level AAA for large text8.36
Pass Level AAA for regular text
Pass 163 Pass 561
#00c Sample Pass Level AAA for large text6.52
Pass level 2 fo regular text
Pass 157 Pass 612
#00f Sample Pass Level AAA for large text4.99
Pass level 2 fo regular text
Pass 151 Pass 663
#030 Sample Pass Level AAA for large text8.28
Pass Level AAA for regular text
Pass 150 Fail 357
#033 Sample Pass Level AAA for large text8.02
Pass Level AAA for regular text
Pass 144 Fail 408
#036 Sample Pass Level AAA for large text7.33
Pass Level AAA for regular text
Pass 139 Fail 459
#039 Sample Pass Level AAA for large text6.31
Pass level 2 fo regular text
Pass 133 Pass 510
#03c Sample Pass Level AAA for large text5.20
Pass level 2 fo regular text
Pass 127 Pass 561
#03f Sample Pass Level AA for large text4.18
Fail fo regular text
Fail 121 Pass 612
#060 Sample Pass Level AA for large text4.21
Fail fo regular text
Fail 120 Fail 306
#063 Sample Pass Level AA for large text4.14
Fail fo regular text
Fail 115 Fail 357
#066 Sample Pass Level AA for large text3.95
Fail fo regular text
Fail 109 Fail 408
#069 Sample Pass Level AA for large text3.63
Fail fo regular text
Fail 103 Fail 459
#06c Sample Pass Level AA for large text3.24
Fail fo regular text
Fail 97 Pass 510
#06f Sample Fail2.81
Fail
Fail 91 Pass 561
#090 Sample Fail2.20
Fail
Fail 90 Fail 255
#093 Sample Fail2.18
Fail
Fail 85 Fail 306
#096 Sample Fail2.12
Fail
Fail 79 Fail 357
#099 Sample Fail2.03
Fail
Fail 73 Fail 408
#09c Sample Fail1.90
Fail
Fail 67 Fail 459
#09f Sample Fail1.74
Fail
Fail 61 Pass 510
#0c0 Sample Fail1.27
Fail
Fail 60 Fail 204
#0c3 Sample Fail1.26
Fail
Fail 55 Fail 255
#0c6 Sample Fail1.24
Fail
Fail 49 Fail 306
#0c9 Sample Fail1.21
Fail
Fail 43 Fail 357
#0cc Sample Fail1.16
Fail
Fail 37 Fail 408
#0cf Sample Fail1.10
Fail
Fail 31 Fail 459
#0f0 Sample Fail1.25
Fail
Fail 31 Fail 255
#0f3 Sample Fail1.26
Fail
Fail 25 Fail 306
#0f6 Sample Fail1.27
Fail
Fail 19 Fail 357
#0f9 Sample Fail1.29
Fail
Fail 13 Fail 408
#0fc Sample Fail1.33
Fail
Fail 7 Fail 459
#0ff Sample Fail1.37
Fail
Fail 1 Pass 510
#300 Sample Pass Level AAA for large text10.70
Pass Level AAA for regular text
Pass 165 Fail 357
#303 Sample Pass Level AAA for large text10.27
Pass Level AAA for regular text
Pass 159 Fail 408
#306 Sample Pass Level AAA for large text9.16
Pass Level AAA for regular text
Pass 153 Fail 459
#309 Sample Pass Level AAA for large text7.62
Pass Level AAA for regular text
Pass 148 Pass 510
#30c Sample Pass Level AAA for large text6.06
Pass level 2 fo regular text
Pass 142 Pass 561
#30f Sample Pass Level AAA for large text4.72
Pass level 2 fo regular text
Pass 136 Pass 612
#330 Sample Pass Level AAA for large text7.56
Pass Level AAA for regular text
Pass 135 Fail 306
#333 Sample Pass Level AAA for large text7.34
Pass Level AAA for regular text
Pass 129 Fail 357
#336 Sample Pass Level AAA for large text6.76
Pass level 2 fo regular text
Fail 123 Fail 408
#339 Sample Pass Level AAA for large text5.88
Pass level 2 fo regular text
Fail 118 Fail 459
#33c Sample Pass Level AAA for large text4.91
Pass level 2 fo regular text
Fail 112 Pass 510
#33f Sample Pass Level AA for large text3.99
Fail fo regular text
Fail 106 Pass 561
#360 Sample Pass Level AA for large text4.01
Fail fo regular text
Fail 105 Fail 255
#363 Sample Pass Level AA for large text3.95
Fail fo regular text
Fail 99 Fail 306
#366 Sample Pass Level AA for large text3.77
Fail fo regular text
Fail 93 Fail 357
#369 Sample Pass Level AA for large text3.49
Fail fo regular text
Fail 88 Fail 408
#36c Sample Pass Level AA for large text3.12
Fail fo regular text
Fail 82 Fail 459
#36f Sample Fail2.72
Fail
Fail 76 Pass 510
#390 Sample Fail2.14
Fail
Fail 75 Fail 204
#393 Sample Fail2.12
Fail
Fail 69 Fail 255
#396 Sample Fail2.07
Fail
Fail 64 Fail 306
#399 Sample Fail1.98
Fail
Fail 58 Fail 357
#39c Sample Fail1.86
Fail
Fail 52 Fail 408
#39f Sample Fail1.71
Fail
Fail 46 Fail 459
#3c0 Sample Fail1.25
Fail
Fail 45 Fail 153
#3c3 Sample Fail1.24
Fail
Fail 39 Fail 204
#3c6 Sample Fail1.22
Fail
Fail 34 Fail 255
#3c9 Sample Fail1.19
Fail
Fail 28 Fail 306
#3cc Sample Fail1.15
Fail
Fail 22 Fail 357
#3cf Sample Fail1.09
Fail
Fail 16 Fail 408
#3f0 Sample Fail1.27
Fail
Fail 15 Fail 204
#3f3 Sample Fail1.27
Fail
Fail 9 Fail 255
#3f6 Sample Fail1.28
Fail
Fail 4 Fail 306
#3f9 Sample Fail1.30
Fail
Fail 1 Fail 357
#3fc Sample Fail1.34
Fail
Fail 7 Fail 408
#3ff Sample Fail1.38
Fail
Fail 13 Fail 459
#600 Sample Pass Level AAA for large text7.80
Pass Level AAA for regular text
Pass 150 Fail 306
#603 Sample Pass Level AAA for large text7.57
Pass Level AAA for regular text
Pass 144 Fail 357
#606 Sample Pass Level AAA for large text6.95
Pass level 2 fo regular text
Pass 138 Fail 408
#609 Sample Pass Level AAA for large text6.03
Pass level 2 fo regular text
Pass 132 Fail 459
#60c Sample Pass Level AAA for large text5.01
Pass level 2 fo regular text
Pass 126 Pass 510
#60f Sample Pass Level AA for large text4.06
Fail fo regular text
Fail 121 Pass 561
#630 Sample Pass Level AAA for large text5.99
Pass level 2 fo regular text
Fail 120 Fail 255
#633 Sample Pass Level AAA for large text5.85
Pass level 2 fo regular text
Fail 114 Fail 306
#636 Sample Pass Level AAA for large text5.47
Pass level 2 fo regular text
Fail 108 Fail 357
#639 Sample Pass Level AAA for large text4.88
Pass level 2 fo regular text
Fail 102 Fail 408
#63c Sample Pass Level AA for large text4.19
Fail fo regular text
Fail 97 Fail 459
#63f Sample Pass Level AA for large text3.50
Fail fo regular text
Fail 91 Pass 510
#660 Sample Pass Level AA for large text3.52
Fail fo regular text
Fail 90 Fail 204
#663 Sample Pass Level AA for large text3.47
Fail fo regular text
Fail 84 Fail 255
#666 Sample Pass Level AA for large text3.34
Fail fo regular text
Fail 78 Fail 306
#669 Sample Pass Level AA for large text3.11
Fail fo regular text
Fail 72 Fail 357
#66c Sample Fail2.81
Fail
Fail 67 Fail 408
#66f Sample Fail2.49
Fail
Fail 61 Fail 459
#690 Sample Fail1.99
Fail
Fail 60 Fail 153
#693 Sample Fail1.98
Fail
Fail 54 Fail 204
#696 Sample Fail1.93
Fail
Fail 48 Fail 255
#699 Sample Fail1.85
Fail
Fail 42 Fail 306
#69c Sample Fail1.75
Fail
Fail 37 Fail 357
#69f Sample Fail1.61
Fail
Fail 31 Fail 408
#6c0 Sample Fail1.20
Fail
Fail 30 Fail 102
#6c3 Sample Fail1.19
Fail
Fail 24 Fail 153
#6c6 Sample Fail1.17
Fail
Fail 18 Fail 204
#6c9 Sample Fail1.14
Fail
Fail 13 Fail 255
#6cc Sample Fail1.10
Fail
Fail 7 Fail 306
#6cf Sample Fail1.05
Fail
Fail 1 Fail 357
#6f0 Sample Fail1.30
Fail
Fail 0 Fail 153
#6f3 Sample Fail1.30
Fail
Fail 5 Fail 204
#6f6 Sample Fail1.32
Fail
Fail 11 Fail 255
#6f9 Sample Fail1.34
Fail
Fail 16 Fail 306
#6fc Sample Fail1.37
Fail
Fail 22 Fail 357
#6ff Sample Fail1.42
Fail
Fail 28 Fail 408
#900 Sample Pass Level AAA for large text5.18
Pass level 2 fo regular text
Pass 134 Fail 255
#903 Sample Pass Level AAA for large text5.08
Pass level 2 fo regular text
Pass 129 Fail 306
#906 Sample Pass Level AAA for large text4.79
Pass level 2 fo regular text
Fail 123 Fail 357
#909 Sample Pass Level AA for large text4.34
Fail fo regular text
Fail 117 Fail 408
#90c Sample Pass Level AA for large text3.78
Fail fo regular text
Fail 111 Fail 459
#90f Sample Pass Level AA for large text3.21
Fail fo regular text
Fail 105 Pass 510
#930 Sample Pass Level AA for large text4.32
Fail fo regular text
Fail 105 Fail 204
#933 Sample Pass Level AA for large text4.24
Fail fo regular text
Fail 99 Fail 255
#936 Sample Pass Level AA for large text4.04
Fail fo regular text
Fail 93 Fail 306
#939 Sample Pass Level AA for large text3.71
Fail fo regular text
Fail 87 Fail 357
#93c Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 81 Fail 408
#93f Sample Fail2.86
Fail
Fail 75 Fail 459
#960 Sample Fail2.87
Fail
Fail 75 Fail 153
#963 Sample Fail2.84
Fail
Fail 69 Fail 204
#966 Sample Fail2.74
Fail
Fail 63 Fail 255
#969 Sample Fail2.59
Fail
Fail 57 Fail 306
#96c Sample Fail2.38
Fail
Fail 51 Fail 357
#96f Sample Fail2.14
Fail
Fail 46 Fail 408
#990 Sample Fail1.77
Fail
Fail 45 Fail 102
#993 Sample Fail1.75
Fail
Fail 39 Fail 153
#996 Sample Fail1.72
Fail
Fail 33 Fail 204
#999 Sample Fail1.66
Fail
Fail 27 Fail 255
#99c Sample Fail1.57
Fail
Fail 21 Fail 306
#99f Sample Fail1.46
Fail
Fail 16 Fail 357
#9c0 Sample Fail1.11
Fail
Fail 15 Fail 51
#9c3 Sample Fail1.11
Fail
Fail 9 Fail 102
#9c6 Sample Fail1.09
Fail
Fail 3 Fail 153
#9c9 Sample Fail1.07
Fail
Fail 2 Fail 204
#9cc Sample Fail1.03
Fail
Fail 8 Fail 255
#9cf Sample Fail1.02
Fail
Fail 13 Fail 306
#9f0 Sample Fail1.36
Fail
Fail 14 Fail 102
#9f3 Sample Fail1.37
Fail
Fail 20 Fail 153
#9f6 Sample Fail1.38
Fail
Fail 26 Fail 204
#9f9 Sample Fail1.40
Fail
Fail 32 Fail 255
#9fc Sample Fail1.44
Fail
Fail 37 Fail 306
#9ff Sample Fail1.48
Fail
Fail 43 Fail 357
#c00 Sample Pass Level AA for large text3.42
Fail fo regular text
Fail 119 Fail 204
#c03 Sample Pass Level AA for large text3.38
Fail fo regular text
Fail 113 Fail 255
#c06 Sample Pass Level AA for large text3.25
Fail fo regular text
Fail 108 Fail 306
#c09 Sample Pass Level AA for large text3.03
Fail fo regular text
Fail 102 Fail 357
#c0c Sample Fail2.75
Fail
Fail 96 Fail 408
#c0f Sample Fail2.44
Fail
Fail 90 Fail 459
#c30 Sample Pass Level AA for large text3.02
Fail fo regular text
Fail 89 Fail 153
#c33 Sample Fail2.98
Fail
Fail 83 Fail 204
#c36 Sample Fail2.88
Fail
Fail 78 Fail 255
#c39 Sample Fail2.71
Fail
Fail 72 Fail 306
#c3c Sample Fail2.48
Fail
Fail 66 Fail 357
#c3f Sample Fail2.23
Fail
Fail 60 Fail 408
#c60 Sample Fail2.23
Fail
Fail 59 Fail 102
#c63 Sample Fail2.21
Fail
Fail 54 Fail 153
#c66 Sample Fail2.16
Fail
Fail 48 Fail 204
#c69 Sample Fail2.06
Fail
Fail 42 Fail 255
#c6c Sample Fail1.93
Fail
Fail 36 Fail 306
#c6f Sample Fail1.77
Fail
Fail 30 Fail 357
#c90 Sample Fail1.50
Fail
Fail 29 Fail 51
#c93 Sample Fail1.49
Fail
Fail 24 Fail 102
#c96 Sample Fail1.47
Fail
Fail 18 Fail 153
#c99 Sample Fail1.42
Fail
Fail 12 Fail 204
#c9c Sample Fail1.36
Fail
Fail 6 Fail 255
#c9f Sample Fail1.28
Fail
Fail 0 Fail 306
#cc0 Sample Fail1.00
Fail
Fail 0 Fail 0
#cc3 Sample Fail1.00
Fail
Fail 5 Fail 51
#cc6 Sample Fail1.02
Fail
Fail 11 Fail 102
#cc9 Sample Fail1.04
Fail
Fail 17 Fail 153
#ccc Sample Fail1.07
Fail
Fail 23 Fail 204
#ccf Sample Fail1.12
Fail
Fail 29 Fail 255
#cf0 Sample Fail1.46
Fail
Fail 29 Fail 51
#cf3 Sample Fail1.47
Fail
Fail 35 Fail 102
#cf6 Sample Fail1.48
Fail
Fail 41 Fail 153
#cf9 Sample Fail1.50
Fail
Fail 47 Fail 204
#cfc Sample Fail1.54
Fail
Fail 53 Fail 255
#cff Sample Fail1.58
Fail
Fail 59 Fail 306
#f00 Sample Fail2.32
Fail
Fail 104 Fail 255
#f03 Sample Fail2.30
Fail
Fail 98 Fail 306
#f06 Sample Fail2.24
Fail
Fail 92 Fail 357
#f09 Sample Fail2.14
Fail
Fail 87 Fail 408
#f0c Sample Fail1.99
Fail
Fail 81 Fail 459
#f0f Sample Fail1.82
Fail
Fail 75 Pass 510
#f30 Sample Fail2.13
Fail
Fail 74 Fail 204
#f33 Sample Fail2.11
Fail
Fail 68 Fail 255
#f36 Sample Fail2.06
Fail
Fail 62 Fail 306
#f39 Sample Fail1.97
Fail
Fail 57 Fail 357
#f3c Sample Fail1.85
Fail
Fail 51 Fail 408
#f3f Sample Fail1.70
Fail
Fail 45 Fail 459
#f60 Sample Fail1.71
Fail
Fail 44 Fail 153
#f63 Sample Fail1.70
Fail
Fail 38 Fail 204
#f66 Sample Fail1.66
Fail
Fail 32 Fail 255
#f69 Sample Fail1.60
Fail
Fail 27 Fail 306
#f6c Sample Fail1.52
Fail
Fail 21 Fail 357
#f6f Sample Fail1.42
Fail
Fail 15 Fail 408
#f90 Sample Fail1.24
Fail
Fail 14 Fail 102
#f93 Sample Fail1.24
Fail
Fail 8 Fail 153
#f96 Sample Fail1.22
Fail
Fail 3 Fail 204
#f99 Sample Fail1.19
Fail
Fail 2 Fail 255
#f9c Sample Fail1.14
Fail
Fail 8 Fail 306
#f9f Sample Fail1.08
Fail
Fail 14 Fail 357
#fc0 Sample Fail1.14
Fail
Fail 15 Fail 51
#fc3 Sample Fail1.14
Fail
Fail 21 Fail 102
#fc6 Sample Fail1.15
Fail
Fail 26 Fail 153
#fc9 Sample Fail1.18
Fail
Fail 32 Fail 204
#fcc Sample Fail1.21
Fail
Fail 38 Fail 255
#fcf Sample Fail1.26
Fail
Fail 44 Fail 306
#ff0 Sample Fail1.60
Fail
Fail 45 Fail 102
#ff3 Sample Fail1.61
Fail
Fail 51 Fail 153
#ff6 Sample Fail1.62
Fail
Fail 56 Fail 204
#ff9 Sample Fail1.64
Fail
Fail 62 Fail 255
#ffc Sample Fail1.67
Fail
Fail 68 Fail 306
#fff Sample Fail1.72
Fail
Fail 74 Fail 357

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.