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 #9cf

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #9cf, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #9cf
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text12.44
Pass Level AAA for regular text
Pass 194 Pass 612
#003 Sample Pass Level AAA for large text11.87
Pass Level AAA for regular text
Pass 188 Pass 561
#006 Sample Pass Level AAA for large text10.43
Pass Level AAA for regular text
Pass 182 Pass 510
#009 Sample Pass Level AAA for large text8.52
Pass Level AAA for regular text
Pass 177 Fail 459
#00c Sample Pass Level AAA for large text6.64
Pass level 2 fo regular text
Pass 171 Fail 408
#00f Sample Pass Level AAA for large text5.09
Pass level 2 fo regular text
Pass 165 Fail 357
#030 Sample Pass Level AAA for large text8.44
Pass Level AAA for regular text
Pass 164 Pass 561
#033 Sample Pass Level AAA for large text8.17
Pass Level AAA for regular text
Pass 158 Pass 510
#036 Sample Pass Level AAA for large text7.47
Pass Level AAA for regular text
Pass 153 Fail 459
#039 Sample Pass Level AAA for large text6.43
Pass level 2 fo regular text
Pass 147 Fail 408
#03c Sample Pass Level AAA for large text5.30
Pass level 2 fo regular text
Pass 141 Fail 357
#03f Sample Pass Level AA for large text4.26
Fail fo regular text
Pass 135 Fail 306
#060 Sample Pass Level AA for large text4.29
Fail fo regular text
Pass 134 Pass 510
#063 Sample Pass Level AA for large text4.22
Fail fo regular text
Pass 128 Fail 459
#066 Sample Pass Level AA for large text4.02
Fail fo regular text
Fail 123 Fail 408
#069 Sample Pass Level AA for large text3.70
Fail fo regular text
Fail 117 Fail 357
#06c Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 111 Fail 306
#06f Sample Fail2.86
Fail
Fail 105 Fail 255
#090 Sample Fail2.24
Fail
Fail 104 Fail 459
#093 Sample Fail2.22
Fail
Fail 98 Fail 408
#096 Sample Fail2.16
Fail
Fail 93 Fail 357
#099 Sample Fail2.07
Fail
Fail 87 Fail 306
#09c Sample Fail1.93
Fail
Fail 81 Fail 255
#09f Sample Fail1.78
Fail
Fail 75 Fail 204
#0c0 Sample Fail1.29
Fail
Fail 74 Fail 408
#0c3 Sample Fail1.28
Fail
Fail 69 Fail 357
#0c6 Sample Fail1.27
Fail
Fail 63 Fail 306
#0c9 Sample Fail1.23
Fail
Fail 57 Fail 255
#0cc Sample Fail1.18
Fail
Fail 51 Fail 204
#0cf Sample Fail1.12
Fail
Fail 45 Fail 153
#0f0 Sample Fail1.23
Fail
Fail 44 Fail 459
#0f3 Sample Fail1.23
Fail
Fail 39 Fail 408
#0f6 Sample Fail1.25
Fail
Fail 33 Fail 357
#0f9 Sample Fail1.27
Fail
Fail 27 Fail 306
#0fc Sample Fail1.30
Fail
Fail 21 Fail 255
#0ff Sample Fail1.35
Fail
Fail 15 Fail 204
#300 Sample Pass Level AAA for large text10.90
Pass Level AAA for regular text
Pass 179 Pass 561
#303 Sample Pass Level AAA for large text10.46
Pass Level AAA for regular text
Pass 173 Pass 510
#306 Sample Pass Level AAA for large text9.33
Pass Level AAA for regular text
Pass 167 Fail 459
#309 Sample Pass Level AAA for large text7.77
Pass Level AAA for regular text
Pass 161 Fail 408
#30c Sample Pass Level AAA for large text6.18
Pass level 2 fo regular text
Pass 156 Fail 357
#30f Sample Pass Level AAA for large text4.81
Pass level 2 fo regular text
Pass 150 Fail 306
#330 Sample Pass Level AAA for large text7.70
Pass Level AAA for regular text
Pass 149 Pass 510
#333 Sample Pass Level AAA for large text7.48
Pass Level AAA for regular text
Pass 143 Fail 459
#336 Sample Pass Level AAA for large text6.89
Pass level 2 fo regular text
Pass 137 Fail 408
#339 Sample Pass Level AAA for large text6.00
Pass level 2 fo regular text
Pass 131 Fail 357
#33c Sample Pass Level AAA for large text5.00
Pass level 2 fo regular text
Pass 126 Fail 306
#33f Sample Pass Level AA for large text4.07
Fail fo regular text
Fail 120 Fail 255
#360 Sample Pass Level AA for large text4.09
Fail fo regular text
Fail 119 Fail 459
#363 Sample Pass Level AA for large text4.03
Fail fo regular text
Fail 113 Fail 408
#366 Sample Pass Level AA for large text3.85
Fail fo regular text
Fail 107 Fail 357
#369 Sample Pass Level AA for large text3.55
Fail fo regular text
Fail 102 Fail 306
#36c Sample Pass Level AA for large text3.18
Fail fo regular text
Fail 96 Fail 255
#36f Sample Fail2.77
Fail
Fail 90 Fail 204
#390 Sample Fail2.18
Fail
Fail 89 Fail 408
#393 Sample Fail2.16
Fail
Fail 83 Fail 357
#396 Sample Fail2.11
Fail
Fail 77 Fail 306
#399 Sample Fail2.02
Fail
Fail 72 Fail 255
#39c Sample Fail1.89
Fail
Fail 66 Fail 204
#39f Sample Fail1.74
Fail
Fail 60 Fail 153
#3c0 Sample Fail1.27
Fail
Fail 59 Fail 357
#3c3 Sample Fail1.27
Fail
Fail 53 Fail 306
#3c6 Sample Fail1.25
Fail
Fail 47 Fail 255
#3c9 Sample Fail1.21
Fail
Fail 42 Fail 204
#3cc Sample Fail1.17
Fail
Fail 36 Fail 153
#3cf Sample Fail1.11
Fail
Fail 30 Fail 102
#3f0 Sample Fail1.24
Fail
Fail 29 Fail 408
#3f3 Sample Fail1.25
Fail
Fail 23 Fail 357
#3f6 Sample Fail1.26
Fail
Fail 18 Fail 306
#3f9 Sample Fail1.28
Fail
Fail 12 Fail 255
#3fc Sample Fail1.31
Fail
Fail 6 Fail 204
#3ff Sample Fail1.36
Fail
Fail 0 Fail 153
#600 Sample Pass Level AAA for large text7.95
Pass Level AAA for regular text
Pass 164 Pass 510
#603 Sample Pass Level AAA for large text7.71
Pass Level AAA for regular text
Pass 158 Fail 459
#606 Sample Pass Level AAA for large text7.08
Pass Level AAA for regular text
Pass 152 Fail 408
#609 Sample Pass Level AAA for large text6.14
Pass level 2 fo regular text
Pass 146 Fail 357
#60c Sample Pass Level AAA for large text5.10
Pass level 2 fo regular text
Pass 140 Fail 306
#60f Sample Pass Level AA for large text4.13
Fail fo regular text
Pass 134 Fail 255
#630 Sample Pass Level AAA for large text6.10
Pass level 2 fo regular text
Pass 134 Fail 459
#633 Sample Pass Level AAA for large text5.96
Pass level 2 fo regular text
Pass 128 Fail 408
#636 Sample Pass Level AAA for large text5.58
Pass level 2 fo regular text
Fail 122 Fail 357
#639 Sample Pass Level AAA for large text4.98
Pass level 2 fo regular text
Fail 116 Fail 306
#63c Sample Pass Level AA for large text4.27
Fail fo regular text
Fail 110 Fail 255
#63f Sample Pass Level AA for large text3.57
Fail fo regular text
Fail 105 Fail 204
#660 Sample Pass Level AA for large text3.59
Fail fo regular text
Fail 104 Fail 408
#663 Sample Pass Level AA for large text3.54
Fail fo regular text
Fail 98 Fail 357
#666 Sample Pass Level AA for large text3.40
Fail fo regular text
Fail 92 Fail 306
#669 Sample Pass Level AA for large text3.17
Fail fo regular text
Fail 86 Fail 255
#66c Sample Fail2.87
Fail
Fail 80 Fail 204
#66f Sample Fail2.53
Fail
Fail 75 Fail 153
#690 Sample Fail2.03
Fail
Fail 74 Fail 357
#693 Sample Fail2.02
Fail
Fail 68 Fail 306
#696 Sample Fail1.97
Fail
Fail 62 Fail 255
#699 Sample Fail1.89
Fail
Fail 56 Fail 204
#69c Sample Fail1.78
Fail
Fail 51 Fail 153
#69f Sample Fail1.64
Fail
Fail 45 Fail 102
#6c0 Sample Fail1.22
Fail
Fail 44 Fail 306
#6c3 Sample Fail1.21
Fail
Fail 38 Fail 255
#6c6 Sample Fail1.20
Fail
Fail 32 Fail 204
#6c9 Sample Fail1.17
Fail
Fail 26 Fail 153
#6cc Sample Fail1.12
Fail
Fail 21 Fail 102
#6cf Sample Fail1.07
Fail
Fail 15 Fail 51
#6f0 Sample Fail1.28
Fail
Fail 14 Fail 357
#6f3 Sample Fail1.28
Fail
Fail 8 Fail 306
#6f6 Sample Fail1.29
Fail
Fail 2 Fail 255
#6f9 Sample Fail1.31
Fail
Fail 3 Fail 204
#6fc Sample Fail1.35
Fail
Fail 8 Fail 153
#6ff Sample Fail1.39
Fail
Fail 14 Fail 102
#900 Sample Pass Level AAA for large text5.28
Pass level 2 fo regular text
Pass 148 Fail 459
#903 Sample Pass Level AAA for large text5.18
Pass level 2 fo regular text
Pass 143 Fail 408
#906 Sample Pass Level AAA for large text4.88
Pass level 2 fo regular text
Pass 137 Fail 357
#909 Sample Pass Level AA for large text4.42
Fail fo regular text
Pass 131 Fail 306
#90c Sample Pass Level AA for large text3.85
Fail fo regular text
Fail 125 Fail 255
#90f Sample Pass Level AA for large text3.27
Fail fo regular text
Fail 119 Fail 204
#930 Sample Pass Level AA for large text4.40
Fail fo regular text
Fail 118 Fail 408
#933 Sample Pass Level AA for large text4.32
Fail fo regular text
Fail 113 Fail 357
#936 Sample Pass Level AA for large text4.12
Fail fo regular text
Fail 107 Fail 306
#939 Sample Pass Level AA for large text3.78
Fail fo regular text
Fail 101 Fail 255
#93c Sample Pass Level AA for large text3.36
Fail fo regular text
Fail 95 Fail 204
#93f Sample Fail2.91
Fail
Fail 89 Fail 153
#960 Sample Fail2.92
Fail
Fail 88 Fail 357
#963 Sample Fail2.89
Fail
Fail 83 Fail 306
#966 Sample Fail2.80
Fail
Fail 77 Fail 255
#969 Sample Fail2.64
Fail
Fail 71 Fail 204
#96c Sample Fail2.43
Fail
Fail 65 Fail 153
#96f Sample Fail2.18
Fail
Fail 59 Fail 102
#990 Sample Fail1.80
Fail
Fail 59 Fail 306
#993 Sample Fail1.79
Fail
Fail 53 Fail 255
#996 Sample Fail1.75
Fail
Fail 47 Fail 204
#999 Sample Fail1.69
Fail
Fail 41 Fail 153
#99c Sample Fail1.60
Fail
Fail 35 Fail 102
#99f Sample Fail1.49
Fail
Fail 29 Fail 51
#9c0 Sample Fail1.13
Fail
Fail 29 Fail 255
#9c3 Sample Fail1.13
Fail
Fail 23 Fail 204
#9c6 Sample Fail1.11
Fail
Fail 17 Fail 153
#9c9 Sample Fail1.09
Fail
Fail 11 Fail 102
#9cc Sample Fail1.05
Fail
Fail 5 Fail 51
#9cf Sample Fail1.00
Fail
Fail 0 Fail 0
#9f0 Sample Fail1.34
Fail
Fail 0 Fail 306
#9f3 Sample Fail1.34
Fail
Fail 6 Fail 255
#9f6 Sample Fail1.36
Fail
Fail 12 Fail 204
#9f9 Sample Fail1.38
Fail
Fail 18 Fail 153
#9fc Sample Fail1.41
Fail
Fail 24 Fail 102
#9ff Sample Fail1.46
Fail
Fail 29 Fail 51
#c00 Sample Pass Level AA for large text3.49
Fail fo regular text
Pass 133 Pass 510
#c03 Sample Pass Level AA for large text3.44
Fail fo regular text
Pass 127 Fail 459
#c06 Sample Pass Level AA for large text3.31
Fail fo regular text
Fail 121 Fail 408
#c09 Sample Pass Level AA for large text3.09
Fail fo regular text
Fail 116 Fail 357
#c0c Sample Fail2.80
Fail
Fail 110 Fail 306
#c0f Sample Fail2.48
Fail
Fail 104 Fail 255
#c30 Sample Pass Level AA for large text3.08
Fail fo regular text
Fail 103 Fail 459
#c33 Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 97 Fail 408
#c36 Sample Fail2.94
Fail
Fail 92 Fail 357
#c39 Sample Fail2.76
Fail
Fail 86 Fail 306
#c3c Sample Fail2.53
Fail
Fail 80 Fail 255
#c3f Sample Fail2.27
Fail
Fail 74 Fail 204
#c60 Sample Fail2.27
Fail
Fail 73 Fail 408
#c63 Sample Fail2.25
Fail
Fail 67 Fail 357
#c66 Sample Fail2.20
Fail
Fail 62 Fail 306
#c69 Sample Fail2.10
Fail
Fail 56 Fail 255
#c6c Sample Fail1.96
Fail
Fail 50 Fail 204
#c6f Sample Fail1.80
Fail
Fail 44 Fail 153
#c90 Sample Fail1.53
Fail
Fail 43 Fail 357
#c93 Sample Fail1.52
Fail
Fail 37 Fail 306
#c96 Sample Fail1.50
Fail
Fail 32 Fail 255
#c99 Sample Fail1.45
Fail
Fail 26 Fail 204
#c9c Sample Fail1.38
Fail
Fail 20 Fail 153
#c9f Sample Fail1.30
Fail
Fail 14 Fail 102
#cc0 Sample Fail1.02
Fail
Fail 13 Fail 306
#cc3 Sample Fail1.01
Fail
Fail 8 Fail 255
#cc6 Sample Fail1.00
Fail
Fail 2 Fail 204
#cc9 Sample Fail1.02
Fail
Fail 3 Fail 153
#ccc Sample Fail1.05
Fail
Fail 9 Fail 102
#ccf Sample Fail1.10
Fail
Fail 15 Fail 51
#cf0 Sample Fail1.44
Fail
Fail 16 Fail 357
#cf3 Sample Fail1.44
Fail
Fail 21 Fail 306
#cf6 Sample Fail1.45
Fail
Fail 27 Fail 255
#cf9 Sample Fail1.47
Fail
Fail 33 Fail 204
#cfc Sample Fail1.51
Fail
Fail 39 Fail 153
#cff Sample Fail1.55
Fail
Fail 45 Fail 102
#f00 Sample Fail2.37
Fail
Fail 118 Pass 561
#f03 Sample Fail2.35
Fail
Fail 112 Pass 510
#f06 Sample Fail2.28
Fail
Fail 106 Fail 459
#f09 Sample Fail2.18
Fail
Fail 100 Fail 408
#f0c Sample Fail2.03
Fail
Fail 95 Fail 357
#f0f Sample Fail1.86
Fail
Fail 89 Fail 306
#f30 Sample Fail2.17
Fail
Fail 88 Pass 510
#f33 Sample Fail2.15
Fail
Fail 82 Fail 459
#f36 Sample Fail2.10
Fail
Fail 76 Fail 408
#f39 Sample Fail2.01
Fail
Fail 70 Fail 357
#f3c Sample Fail1.88
Fail
Fail 65 Fail 306
#f3f Sample Fail1.73
Fail
Fail 59 Fail 255
#f60 Sample Fail1.74
Fail
Fail 58 Fail 459
#f63 Sample Fail1.73
Fail
Fail 52 Fail 408
#f66 Sample Fail1.69
Fail
Fail 46 Fail 357
#f69 Sample Fail1.63
Fail
Fail 41 Fail 306
#f6c Sample Fail1.55
Fail
Fail 35 Fail 255
#f6f Sample Fail1.45
Fail
Fail 29 Fail 204
#f90 Sample Fail1.27
Fail
Fail 28 Fail 408
#f93 Sample Fail1.26
Fail
Fail 22 Fail 357
#f96 Sample Fail1.24
Fail
Fail 16 Fail 306
#f99 Sample Fail1.21
Fail
Fail 11 Fail 255
#f9c Sample Fail1.16
Fail
Fail 5 Fail 204
#f9f Sample Fail1.11
Fail
Fail 0 Fail 153
#fc0 Sample Fail1.12
Fail
Fail 1 Fail 357
#fc3 Sample Fail1.12
Fail
Fail 7 Fail 306
#fc6 Sample Fail1.13
Fail
Fail 13 Fail 255
#fc9 Sample Fail1.15
Fail
Fail 18 Fail 204
#fcc Sample Fail1.19
Fail
Fail 24 Fail 153
#fcf Sample Fail1.23
Fail
Fail 30 Fail 102
#ff0 Sample Fail1.57
Fail
Fail 31 Fail 408
#ff3 Sample Fail1.58
Fail
Fail 37 Fail 357
#ff6 Sample Fail1.59
Fail
Fail 42 Fail 306
#ff9 Sample Fail1.61
Fail
Fail 48 Fail 255
#ffc Sample Fail1.64
Fail
Fail 54 Fail 204
#fff Sample Fail1.69
Fail
Fail 60 Fail 153

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.