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 #0ff

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #0ff, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #0ff
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text16.75
Pass Level AAA for regular text
Pass 178 Pass 510
#003 Sample Pass Level AAA for large text15.98
Pass Level AAA for regular text
Pass 172 Fail 459
#006 Sample Pass Level AAA for large text14.05
Pass Level AAA for regular text
Pass 167 Fail 408
#009 Sample Pass Level AAA for large text11.47
Pass Level AAA for regular text
Pass 161 Fail 357
#00c Sample Pass Level AAA for large text8.95
Pass Level AAA for regular text
Pass 155 Fail 306
#00f Sample Pass Level AAA for large text6.85
Pass level 2 fo regular text
Pass 149 Fail 255
#030 Sample Pass Level AAA for large text11.37
Pass Level AAA for regular text
Pass 148 Fail 459
#033 Sample Pass Level AAA for large text11.01
Pass Level AAA for regular text
Pass 143 Fail 408
#036 Sample Pass Level AAA for large text10.06
Pass Level AAA for regular text
Pass 137 Fail 357
#039 Sample Pass Level AAA for large text8.66
Pass Level AAA for regular text
Pass 131 Fail 306
#03c Sample Pass Level AAA for large text7.14
Pass Level AAA for regular text
Fail 125 Fail 255
#03f Sample Pass Level AAA for large text5.74
Pass level 2 fo regular text
Fail 119 Fail 204
#060 Sample Pass Level AAA for large text5.77
Pass level 2 fo regular text
Fail 118 Fail 408
#063 Sample Pass Level AAA for large text5.68
Pass level 2 fo regular text
Fail 113 Fail 357
#066 Sample Pass Level AAA for large text5.42
Pass level 2 fo regular text
Fail 107 Fail 306
#069 Sample Pass Level AAA for large text4.98
Pass level 2 fo regular text
Fail 101 Fail 255
#06c Sample Pass Level AA for large text4.44
Fail fo regular text
Fail 95 Fail 204
#06f Sample Pass Level AA for large text3.85
Fail fo regular text
Fail 89 Fail 153
#090 Sample Pass Level AA for large text3.01
Fail fo regular text
Fail 88 Fail 357
#093 Sample Fail2.99
Fail
Fail 83 Fail 306
#096 Sample Fail2.91
Fail
Fail 77 Fail 255
#099 Sample Fail2.78
Fail
Fail 71 Fail 204
#09c Sample Fail2.61
Fail
Fail 65 Fail 153
#09f Sample Fail2.39
Fail
Fail 59 Fail 102
#0c0 Sample Fail1.74
Fail
Fail 59 Fail 306
#0c3 Sample Fail1.73
Fail
Fail 53 Fail 255
#0c6 Sample Fail1.70
Fail
Fail 47 Fail 204
#0c9 Sample Fail1.66
Fail
Fail 41 Fail 153
#0cc Sample Fail1.59
Fail
Fail 35 Fail 102
#0cf Sample Fail1.51
Fail
Fail 29 Fail 51
#0f0 Sample Fail1.09
Fail
Fail 29 Fail 255
#0f3 Sample Fail1.09
Fail
Fail 23 Fail 204
#0f6 Sample Fail1.08
Fail
Fail 17 Fail 153
#0f9 Sample Fail1.06
Fail
Fail 11 Fail 102
#0fc Sample Fail1.04
Fail
Fail 5 Fail 51
#0ff Sample Fail1.00
Fail
Fail 0 Fail 0
#300 Sample Pass Level AAA for large text14.68
Pass Level AAA for regular text
Pass 163 Pass 561
#303 Sample Pass Level AAA for large text14.09
Pass Level AAA for regular text
Pass 157 Pass 510
#306 Sample Pass Level AAA for large text12.57
Pass Level AAA for regular text
Pass 151 Fail 459
#309 Sample Pass Level AAA for large text10.46
Pass Level AAA for regular text
Pass 146 Fail 408
#30c Sample Pass Level AAA for large text8.32
Pass Level AAA for regular text
Pass 140 Fail 357
#30f Sample Pass Level AAA for large text6.48
Pass level 2 fo regular text
Pass 134 Fail 306
#330 Sample Pass Level AAA for large text10.37
Pass Level AAA for regular text
Pass 133 Pass 510
#333 Sample Pass Level AAA for large text10.08
Pass Level AAA for regular text
Pass 127 Fail 459
#336 Sample Pass Level AAA for large text9.27
Pass Level AAA for regular text
Fail 121 Fail 408
#339 Sample Pass Level AAA for large text8.07
Pass Level AAA for regular text
Fail 116 Fail 357
#33c Sample Pass Level AAA for large text6.74
Pass level 2 fo regular text
Fail 110 Fail 306
#33f Sample Pass Level AAA for large text5.48
Pass level 2 fo regular text
Fail 104 Fail 255
#360 Sample Pass Level AAA for large text5.51
Pass level 2 fo regular text
Fail 103 Fail 459
#363 Sample Pass Level AAA for large text5.42
Pass level 2 fo regular text
Fail 97 Fail 408
#366 Sample Pass Level AAA for large text5.18
Pass level 2 fo regular text
Fail 92 Fail 357
#369 Sample Pass Level AAA for large text4.78
Pass level 2 fo regular text
Fail 86 Fail 306
#36c Sample Pass Level AA for large text4.28
Fail fo regular text
Fail 80 Fail 255
#36f Sample Pass Level AA for large text3.73
Fail fo regular text
Fail 74 Fail 204
#390 Sample Fail2.94
Fail
Fail 73 Fail 408
#393 Sample Fail2.92
Fail
Fail 67 Fail 357
#396 Sample Fail2.84
Fail
Fail 62 Fail 306
#399 Sample Fail2.72
Fail
Fail 56 Fail 255
#39c Sample Fail2.55
Fail
Fail 50 Fail 204
#39f Sample Fail2.35
Fail
Fail 44 Fail 153
#3c0 Sample Fail1.71
Fail
Fail 43 Fail 357
#3c3 Sample Fail1.70
Fail
Fail 37 Fail 306
#3c6 Sample Fail1.68
Fail
Fail 32 Fail 255
#3c9 Sample Fail1.64
Fail
Fail 26 Fail 204
#3cc Sample Fail1.57
Fail
Fail 20 Fail 153
#3cf Sample Fail1.49
Fail
Fail 14 Fail 102
#3f0 Sample Fail1.08
Fail
Fail 13 Fail 306
#3f3 Sample Fail1.08
Fail
Fail 8 Fail 255
#3f6 Sample Fail1.07
Fail
Fail 2 Fail 204
#3f9 Sample Fail1.05
Fail
Fail 3 Fail 153
#3fc Sample Fail1.03
Fail
Fail 9 Fail 102
#3ff Sample Fail1.01
Fail
Fail 15 Fail 51
#600 Sample Pass Level AAA for large text10.70
Pass Level AAA for regular text
Pass 148 Pass 612
#603 Sample Pass Level AAA for large text10.38
Pass Level AAA for regular text
Pass 142 Pass 561
#606 Sample Pass Level AAA for large text9.53
Pass Level AAA for regular text
Pass 136 Pass 510
#609 Sample Pass Level AAA for large text8.27
Pass Level AAA for regular text
Pass 130 Fail 459
#60c Sample Pass Level AAA for large text6.87
Pass level 2 fo regular text
Fail 125 Fail 408
#60f Sample Pass Level AAA for large text5.57
Pass level 2 fo regular text
Fail 119 Fail 357
#630 Sample Pass Level AAA for large text8.22
Pass Level AAA for regular text
Fail 118 Pass 561
#633 Sample Pass Level AAA for large text8.03
Pass Level AAA for regular text
Fail 112 Pass 510
#636 Sample Pass Level AAA for large text7.51
Pass Level AAA for regular text
Fail 106 Fail 459
#639 Sample Pass Level AAA for large text6.70
Pass level 2 fo regular text
Fail 100 Fail 408
#63c Sample Pass Level AAA for large text5.75
Pass level 2 fo regular text
Fail 95 Fail 357
#63f Sample Pass Level AAA for large text4.81
Pass level 2 fo regular text
Fail 89 Fail 306
#660 Sample Pass Level AAA for large text4.83
Pass level 2 fo regular text
Fail 88 Pass 510
#663 Sample Pass Level AAA for large text4.77
Pass level 2 fo regular text
Fail 82 Fail 459
#666 Sample Pass Level AAA for large text4.58
Pass level 2 fo regular text
Fail 76 Fail 408
#669 Sample Pass Level AA for large text4.27
Fail fo regular text
Fail 70 Fail 357
#66c Sample Pass Level AA for large text3.86
Fail fo regular text
Fail 65 Fail 306
#66f Sample Pass Level AA for large text3.41
Fail fo regular text
Fail 59 Fail 255
#690 Sample Fail2.74
Fail
Fail 58 Fail 459
#693 Sample Fail2.71
Fail
Fail 52 Fail 408
#696 Sample Fail2.65
Fail
Fail 46 Fail 357
#699 Sample Fail2.54
Fail
Fail 41 Fail 306
#69c Sample Fail2.39
Fail
Fail 35 Fail 255
#69f Sample Fail2.21
Fail
Fail 29 Fail 204
#6c0 Sample Fail1.64
Fail
Fail 28 Fail 408
#6c3 Sample Fail1.63
Fail
Fail 22 Fail 357
#6c6 Sample Fail1.61
Fail
Fail 16 Fail 306
#6c9 Sample Fail1.57
Fail
Fail 11 Fail 255
#6cc Sample Fail1.51
Fail
Fail 5 Fail 204
#6cf Sample Fail1.44
Fail
Fail 0 Fail 153
#6f0 Sample Fail1.06
Fail
Fail 1 Fail 357
#6f3 Sample Fail1.05
Fail
Fail 7 Fail 306
#6f6 Sample Fail1.04
Fail
Fail 13 Fail 255
#6f9 Sample Fail1.03
Fail
Fail 18 Fail 204
#6fc Sample Fail1.00
Fail
Fail 24 Fail 153
#6ff Sample Fail1.03
Fail
Fail 30 Fail 102
#900 Sample Pass Level AAA for large text7.11
Pass Level AAA for regular text
Pass 133 Pass 663
#903 Sample Pass Level AAA for large text6.97
Pass level 2 fo regular text
Pass 127 Pass 612
#906 Sample Pass Level AAA for large text6.58
Pass level 2 fo regular text
Fail 121 Pass 561
#909 Sample Pass Level AAA for large text5.95
Pass level 2 fo regular text
Fail 115 Pass 510
#90c Sample Pass Level AAA for large text5.19
Pass level 2 fo regular text
Fail 109 Fail 459
#90f Sample Pass Level AA for large text4.41
Fail fo regular text
Fail 103 Fail 408
#930 Sample Pass Level AAA for large text5.92
Pass level 2 fo regular text
Fail 103 Pass 612
#933 Sample Pass Level AAA for large text5.82
Pass level 2 fo regular text
Fail 97 Pass 561
#936 Sample Pass Level AAA for large text5.55
Pass level 2 fo regular text
Fail 91 Pass 510
#939 Sample Pass Level AAA for large text5.09
Pass level 2 fo regular text
Fail 85 Fail 459
#93c Sample Pass Level AAA for large text4.53
Pass level 2 fo regular text
Fail 79 Fail 408
#93f Sample Pass Level AA for large text3.92
Fail fo regular text
Fail 74 Fail 357
#960 Sample Pass Level AA for large text3.94
Fail fo regular text
Fail 73 Pass 561
#963 Sample Pass Level AA for large text3.89
Fail fo regular text
Fail 67 Pass 510
#966 Sample Pass Level AA for large text3.77
Fail fo regular text
Fail 61 Fail 459
#969 Sample Pass Level AA for large text3.55
Fail fo regular text
Fail 55 Fail 408
#96c Sample Pass Level AA for large text3.27
Fail fo regular text
Fail 49 Fail 357
#96f Sample Fail2.94
Fail
Fail 44 Fail 306
#990 Sample Fail2.42
Fail
Fail 43 Pass 510
#993 Sample Fail2.41
Fail
Fail 37 Fail 459
#996 Sample Fail2.36
Fail
Fail 31 Fail 408
#999 Sample Fail2.27
Fail
Fail 25 Fail 357
#99c Sample Fail2.15
Fail
Fail 19 Fail 306
#99f Sample Fail2.00
Fail
Fail 14 Fail 255
#9c0 Sample Fail1.52
Fail
Fail 13 Fail 459
#9c3 Sample Fail1.52
Fail
Fail 7 Fail 408
#9c6 Sample Fail1.50
Fail
Fail 1 Fail 357
#9c9 Sample Fail1.46
Fail
Fail 4 Fail 306
#9cc Sample Fail1.41
Fail
Fail 9 Fail 255
#9cf Sample Fail1.35
Fail
Fail 15 Fail 204
#9f0 Sample Fail1.01
Fail
Fail 16 Fail 408
#9f3 Sample Fail1.00
Fail
Fail 22 Fail 357
#9f6 Sample Fail1.01
Fail
Fail 28 Fail 306
#9f9 Sample Fail1.02
Fail
Fail 34 Fail 255
#9fc Sample Fail1.05
Fail
Fail 39 Fail 204
#9ff Sample Fail1.08
Fail
Fail 45 Fail 153
#c00 Sample Pass Level AAA for large text4.69
Pass level 2 fo regular text
Fail 117 Pass 714
#c03 Sample Pass Level AAA for large text4.63
Pass level 2 fo regular text
Fail 111 Pass 663
#c06 Sample Pass Level AA for large text4.46
Fail fo regular text
Fail 106 Pass 612
#c09 Sample Pass Level AA for large text4.16
Fail fo regular text
Fail 100 Pass 561
#c0c Sample Pass Level AA for large text3.77
Fail fo regular text
Fail 94 Pass 510
#c0f Sample Pass Level AA for large text3.34
Fail fo regular text
Fail 88 Fail 459
#c30 Sample Pass Level AA for large text4.14
Fail fo regular text
Fail 87 Pass 663
#c33 Sample Pass Level AA for large text4.10
Fail fo regular text
Fail 82 Pass 612
#c36 Sample Pass Level AA for large text3.96
Fail fo regular text
Fail 76 Pass 561
#c39 Sample Pass Level AA for large text3.72
Fail fo regular text
Fail 70 Pass 510
#c3c Sample Pass Level AA for large text3.41
Fail fo regular text
Fail 64 Fail 459
#c3f Sample Pass Level AA for large text3.05
Fail fo regular text
Fail 58 Fail 408
#c60 Sample Pass Level AA for large text3.06
Fail fo regular text
Fail 57 Pass 612
#c63 Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 52 Pass 561
#c66 Sample Fail2.96
Fail
Fail 46 Pass 510
#c69 Sample Fail2.83
Fail
Fail 40 Fail 459
#c6c Sample Fail2.64
Fail
Fail 34 Fail 408
#c6f Sample Fail2.42
Fail
Fail 28 Fail 357
#c90 Sample Fail2.06
Fail
Fail 27 Pass 561
#c93 Sample Fail2.05
Fail
Fail 22 Pass 510
#c96 Sample Fail2.01
Fail
Fail 16 Fail 459
#c99 Sample Fail1.95
Fail
Fail 10 Fail 408
#c9c Sample Fail1.86
Fail
Fail 4 Fail 357
#c9f Sample Fail1.75
Fail
Fail 1 Fail 306
#cc0 Sample Fail1.37
Fail
Fail 1 Pass 510
#cc3 Sample Fail1.37
Fail
Fail 7 Fail 459
#cc6 Sample Fail1.35
Fail
Fail 13 Fail 408
#cc9 Sample Fail1.32
Fail
Fail 19 Fail 357
#ccc Sample Fail1.28
Fail
Fail 25 Fail 306
#ccf Sample Fail1.23
Fail
Fail 31 Fail 255
#cf0 Sample Fail1.07
Fail
Fail 31 Fail 459
#cf3 Sample Fail1.07
Fail
Fail 37 Fail 408
#cf6 Sample Fail1.08
Fail
Fail 43 Fail 357
#cf9 Sample Fail1.09
Fail
Fail 49 Fail 306
#cfc Sample Fail1.12
Fail
Fail 55 Fail 255
#cff Sample Fail1.15
Fail
Fail 60 Fail 204
#f00 Sample Pass Level AA for large text3.19
Fail fo regular text
Fail 102 Pass 765
#f03 Sample Pass Level AA for large text3.16
Fail fo regular text
Fail 96 Pass 714
#f06 Sample Pass Level AA for large text3.08
Fail fo regular text
Fail 90 Pass 663
#f09 Sample Fail2.93
Fail
Fail 85 Pass 612
#f0c Sample Fail2.73
Fail
Fail 79 Pass 561
#f0f Sample Fail2.50
Fail
Fail 73 Pass 510
#f30 Sample Fail2.93
Fail
Fail 72 Pass 714
#f33 Sample Fail2.90
Fail
Fail 66 Pass 663
#f36 Sample Fail2.83
Fail
Fail 60 Pass 612
#f39 Sample Fail2.71
Fail
Fail 55 Pass 561
#f3c Sample Fail2.54
Fail
Fail 49 Pass 510
#f3f Sample Fail2.34
Fail
Fail 43 Fail 459
#f60 Sample Fail2.34
Fail
Fail 42 Pass 663
#f63 Sample Fail2.33
Fail
Fail 36 Pass 612
#f66 Sample Fail2.28
Fail
Fail 31 Pass 561
#f69 Sample Fail2.20
Fail
Fail 25 Pass 510
#f6c Sample Fail2.09
Fail
Fail 19 Fail 459
#f6f Sample Fail1.95
Fail
Fail 13 Fail 408
#f90 Sample Fail1.71
Fail
Fail 12 Pass 612
#f93 Sample Fail1.70
Fail
Fail 6 Pass 561
#f96 Sample Fail1.67
Fail
Fail 1 Pass 510
#f99 Sample Fail1.63
Fail
Fail 4 Fail 459
#f9c Sample Fail1.57
Fail
Fail 10 Fail 408
#f9f Sample Fail1.49
Fail
Fail 16 Fail 357
#fc0 Sample Fail1.21
Fail
Fail 17 Pass 561
#fc3 Sample Fail1.20
Fail
Fail 23 Pass 510
#fc6 Sample Fail1.19
Fail
Fail 28 Fail 459
#fc9 Sample Fail1.17
Fail
Fail 34 Fail 408
#fcc Sample Fail1.13
Fail
Fail 40 Fail 357
#fcf Sample Fail1.09
Fail
Fail 46 Fail 306
#ff0 Sample Fail1.17
Fail
Fail 47 Pass 510
#ff3 Sample Fail1.17
Fail
Fail 52 Fail 459
#ff6 Sample Fail1.18
Fail
Fail 58 Fail 408
#ff9 Sample Fail1.20
Fail
Fail 64 Fail 357
#ffc Sample Fail1.22
Fail
Fail 70 Fail 306
#fff Sample Fail1.25
Fail
Fail 76 Fail 255

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.