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 #6cf

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #6cf, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #6cf
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text11.65
Pass Level AAA for regular text
Pass 179 Pass 561
#003 Sample Pass Level AAA for large text11.11
Pass Level AAA for regular text
Pass 173 Pass 510
#006 Sample Pass Level AAA for large text9.77
Pass Level AAA for regular text
Pass 167 Fail 459
#009 Sample Pass Level AAA for large text7.98
Pass Level AAA for regular text
Pass 161 Fail 408
#00c Sample Pass Level AAA for large text6.22
Pass level 2 fo regular text
Pass 156 Fail 357
#00f Sample Pass Level AAA for large text4.77
Pass level 2 fo regular text
Pass 150 Fail 306
#030 Sample Pass Level AAA for large text7.90
Pass Level AAA for regular text
Pass 149 Pass 510
#033 Sample Pass Level AAA for large text7.66
Pass Level AAA for regular text
Pass 143 Fail 459
#036 Sample Pass Level AAA for large text6.99
Pass level 2 fo regular text
Pass 137 Fail 408
#039 Sample Pass Level AAA for large text6.02
Pass level 2 fo regular text
Pass 131 Fail 357
#03c Sample Pass Level AAA for large text4.97
Pass level 2 fo regular text
Pass 126 Fail 306
#03f Sample Pass Level AA for large text3.99
Fail fo regular text
Fail 120 Fail 255
#060 Sample Pass Level AA for large text4.02
Fail fo regular text
Fail 119 Fail 459
#063 Sample Pass Level AA for large text3.95
Fail fo regular text
Fail 113 Fail 408
#066 Sample Pass Level AA for large text3.77
Fail fo regular text
Fail 107 Fail 357
#069 Sample Pass Level AA for large text3.47
Fail fo regular text
Fail 102 Fail 306
#06c Sample Pass Level AA for large text3.09
Fail fo regular text
Fail 96 Fail 255
#06f Sample Fail2.68
Fail
Fail 90 Fail 204
#090 Sample Fail2.10
Fail
Fail 89 Fail 408
#093 Sample Fail2.08
Fail
Fail 83 Fail 357
#096 Sample Fail2.03
Fail
Fail 77 Fail 306
#099 Sample Fail1.94
Fail
Fail 72 Fail 255
#09c Sample Fail1.81
Fail
Fail 66 Fail 204
#09f Sample Fail1.66
Fail
Fail 60 Fail 153
#0c0 Sample Fail1.21
Fail
Fail 59 Fail 357
#0c3 Sample Fail1.20
Fail
Fail 53 Fail 306
#0c6 Sample Fail1.18
Fail
Fail 47 Fail 255
#0c9 Sample Fail1.15
Fail
Fail 42 Fail 204
#0cc Sample Fail1.11
Fail
Fail 36 Fail 153
#0cf Sample Fail1.05
Fail
Fail 30 Fail 102
#0f0 Sample Fail1.31
Fail
Fail 29 Fail 408
#0f3 Sample Fail1.32
Fail
Fail 23 Fail 357
#0f6 Sample Fail1.33
Fail
Fail 18 Fail 306
#0f9 Sample Fail1.35
Fail
Fail 12 Fail 255
#0fc Sample Fail1.39
Fail
Fail 6 Fail 204
#0ff Sample Fail1.44
Fail
Fail 0 Fail 153
#300 Sample Pass Level AAA for large text10.21
Pass Level AAA for regular text
Pass 164 Pass 510
#303 Sample Pass Level AAA for large text9.80
Pass Level AAA for regular text
Pass 158 Fail 459
#306 Sample Pass Level AAA for large text8.74
Pass Level AAA for regular text
Pass 152 Fail 408
#309 Sample Pass Level AAA for large text7.28
Pass Level AAA for regular text
Pass 146 Fail 357
#30c Sample Pass Level AAA for large text5.79
Pass level 2 fo regular text
Pass 140 Fail 306
#30f Sample Pass Level AAA for large text4.51
Pass level 2 fo regular text
Pass 134 Fail 255
#330 Sample Pass Level AAA for large text7.21
Pass Level AAA for regular text
Pass 134 Fail 459
#333 Sample Pass Level AAA for large text7.01
Pass Level AAA for regular text
Pass 128 Fail 408
#336 Sample Pass Level AAA for large text6.45
Pass level 2 fo regular text
Fail 122 Fail 357
#339 Sample Pass Level AAA for large text5.61
Pass level 2 fo regular text
Fail 116 Fail 306
#33c Sample Pass Level AAA for large text4.68
Pass level 2 fo regular text
Fail 110 Fail 255
#33f Sample Pass Level AA for large text3.81
Fail fo regular text
Fail 105 Fail 204
#360 Sample Pass Level AA for large text3.83
Fail fo regular text
Fail 104 Fail 408
#363 Sample Pass Level AA for large text3.77
Fail fo regular text
Fail 98 Fail 357
#366 Sample Pass Level AA for large text3.60
Fail fo regular text
Fail 92 Fail 306
#369 Sample Pass Level AA for large text3.33
Fail fo regular text
Fail 86 Fail 255
#36c Sample Fail2.98
Fail
Fail 80 Fail 204
#36f Sample Fail2.60
Fail
Fail 75 Fail 153
#390 Sample Fail2.04
Fail
Fail 74 Fail 357
#393 Sample Fail2.03
Fail
Fail 68 Fail 306
#396 Sample Fail1.98
Fail
Fail 62 Fail 255
#399 Sample Fail1.89
Fail
Fail 56 Fail 204
#39c Sample Fail1.77
Fail
Fail 51 Fail 153
#39f Sample Fail1.63
Fail
Fail 45 Fail 102
#3c0 Sample Fail1.19
Fail
Fail 44 Fail 306
#3c3 Sample Fail1.19
Fail
Fail 38 Fail 255
#3c6 Sample Fail1.17
Fail
Fail 32 Fail 204
#3c9 Sample Fail1.14
Fail
Fail 26 Fail 153
#3cc Sample Fail1.09
Fail
Fail 21 Fail 102
#3cf Sample Fail1.04
Fail
Fail 15 Fail 51
#3f0 Sample Fail1.33
Fail
Fail 14 Fail 357
#3f3 Sample Fail1.33
Fail
Fail 8 Fail 306
#3f6 Sample Fail1.34
Fail
Fail 2 Fail 255
#3f9 Sample Fail1.37
Fail
Fail 3 Fail 204
#3fc Sample Fail1.40
Fail
Fail 8 Fail 153
#3ff Sample Fail1.45
Fail
Fail 14 Fail 102
#600 Sample Pass Level AAA for large text7.44
Pass Level AAA for regular text
Pass 148 Fail 459
#603 Sample Pass Level AAA for large text7.22
Pass Level AAA for regular text
Pass 143 Fail 408
#606 Sample Pass Level AAA for large text6.63
Pass level 2 fo regular text
Pass 137 Fail 357
#609 Sample Pass Level AAA for large text5.75
Pass level 2 fo regular text
Pass 131 Fail 306
#60c Sample Pass Level AAA for large text4.78
Pass level 2 fo regular text
Fail 125 Fail 255
#60f Sample Pass Level AA for large text3.87
Fail fo regular text
Fail 119 Fail 204
#630 Sample Pass Level AAA for large text5.71
Pass level 2 fo regular text
Fail 118 Fail 408
#633 Sample Pass Level AAA for large text5.58
Pass level 2 fo regular text
Fail 113 Fail 357
#636 Sample Pass Level AAA for large text5.22
Pass level 2 fo regular text
Fail 107 Fail 306
#639 Sample Pass Level AAA for large text4.66
Pass level 2 fo regular text
Fail 101 Fail 255
#63c Sample Pass Level AA for large text4.00
Fail fo regular text
Fail 95 Fail 204
#63f Sample Pass Level AA for large text3.34
Fail fo regular text
Fail 89 Fail 153
#660 Sample Pass Level AA for large text3.36
Fail fo regular text
Fail 88 Fail 357
#663 Sample Pass Level AA for large text3.31
Fail fo regular text
Fail 83 Fail 306
#666 Sample Pass Level AA for large text3.18
Fail fo regular text
Fail 77 Fail 255
#669 Sample Fail2.97
Fail
Fail 71 Fail 204
#66c Sample Fail2.69
Fail
Fail 65 Fail 153
#66f Sample Fail2.37
Fail
Fail 59 Fail 102
#690 Sample Fail1.90
Fail
Fail 59 Fail 306
#693 Sample Fail1.89
Fail
Fail 53 Fail 255
#696 Sample Fail1.84
Fail
Fail 47 Fail 204
#699 Sample Fail1.77
Fail
Fail 41 Fail 153
#69c Sample Fail1.67
Fail
Fail 35 Fail 102
#69f Sample Fail1.54
Fail
Fail 29 Fail 51
#6c0 Sample Fail1.14
Fail
Fail 29 Fail 255
#6c3 Sample Fail1.14
Fail
Fail 23 Fail 204
#6c6 Sample Fail1.12
Fail
Fail 17 Fail 153
#6c9 Sample Fail1.09
Fail
Fail 11 Fail 102
#6cc Sample Fail1.05
Fail
Fail 5 Fail 51
#6cf Sample Fail1.00
Fail
Fail 0 Fail 0
#6f0 Sample Fail1.36
Fail
Fail 0 Fail 306
#6f3 Sample Fail1.37
Fail
Fail 6 Fail 255
#6f6 Sample Fail1.38
Fail
Fail 12 Fail 204
#6f9 Sample Fail1.40
Fail
Fail 18 Fail 153
#6fc Sample Fail1.44
Fail
Fail 24 Fail 102
#6ff Sample Fail1.49
Fail
Fail 29 Fail 51
#900 Sample Pass Level AAA for large text4.95
Pass level 2 fo regular text
Pass 133 Pass 510
#903 Sample Pass Level AAA for large text4.85
Pass level 2 fo regular text
Pass 127 Fail 459
#906 Sample Pass Level AAA for large text4.57
Pass level 2 fo regular text
Fail 121 Fail 408
#909 Sample Pass Level AA for large text4.14
Fail fo regular text
Fail 116 Fail 357
#90c Sample Pass Level AA for large text3.61
Fail fo regular text
Fail 110 Fail 306
#90f Sample Pass Level AA for large text3.07
Fail fo regular text
Fail 104 Fail 255
#930 Sample Pass Level AA for large text4.12
Fail fo regular text
Fail 103 Fail 459
#933 Sample Pass Level AA for large text4.05
Fail fo regular text
Fail 97 Fail 408
#936 Sample Pass Level AA for large text3.86
Fail fo regular text
Fail 92 Fail 357
#939 Sample Pass Level AA for large text3.54
Fail fo regular text
Fail 86 Fail 306
#93c Sample Pass Level AA for large text3.15
Fail fo regular text
Fail 80 Fail 255
#93f Sample Fail2.73
Fail
Fail 74 Fail 204
#960 Sample Fail2.74
Fail
Fail 73 Fail 408
#963 Sample Fail2.71
Fail
Fail 67 Fail 357
#966 Sample Fail2.62
Fail
Fail 62 Fail 306
#969 Sample Fail2.47
Fail
Fail 56 Fail 255
#96c Sample Fail2.27
Fail
Fail 50 Fail 204
#96f Sample Fail2.04
Fail
Fail 44 Fail 153
#990 Sample Fail1.69
Fail
Fail 43 Fail 357
#993 Sample Fail1.67
Fail
Fail 37 Fail 306
#996 Sample Fail1.64
Fail
Fail 32 Fail 255
#999 Sample Fail1.58
Fail
Fail 26 Fail 204
#99c Sample Fail1.50
Fail
Fail 20 Fail 153
#99f Sample Fail1.39
Fail
Fail 14 Fail 102
#9c0 Sample Fail1.06
Fail
Fail 13 Fail 306
#9c3 Sample Fail1.05
Fail
Fail 8 Fail 255
#9c6 Sample Fail1.04
Fail
Fail 2 Fail 204
#9c9 Sample Fail1.02
Fail
Fail 3 Fail 153
#9cc Sample Fail1.02
Fail
Fail 9 Fail 102
#9cf Sample Fail1.07
Fail
Fail 15 Fail 51
#9f0 Sample Fail1.43
Fail
Fail 16 Fail 357
#9f3 Sample Fail1.43
Fail
Fail 21 Fail 306
#9f6 Sample Fail1.45
Fail
Fail 27 Fail 255
#9f9 Sample Fail1.47
Fail
Fail 33 Fail 204
#9fc Sample Fail1.51
Fail
Fail 39 Fail 153
#9ff Sample Fail1.55
Fail
Fail 45 Fail 102
#c00 Sample Pass Level AA for large text3.26
Fail fo regular text
Fail 118 Pass 561
#c03 Sample Pass Level AA for large text3.22
Fail fo regular text
Fail 112 Pass 510
#c06 Sample Pass Level AA for large text3.10
Fail fo regular text
Fail 106 Fail 459
#c09 Sample Fail2.89
Fail
Fail 100 Fail 408
#c0c Sample Fail2.62
Fail
Fail 95 Fail 357
#c0f Sample Fail2.32
Fail
Fail 89 Fail 306
#c30 Sample Fail2.88
Fail
Fail 88 Pass 510
#c33 Sample Fail2.85
Fail
Fail 82 Fail 459
#c36 Sample Fail2.75
Fail
Fail 76 Fail 408
#c39 Sample Fail2.59
Fail
Fail 70 Fail 357
#c3c Sample Fail2.37
Fail
Fail 65 Fail 306
#c3f Sample Fail2.12
Fail
Fail 59 Fail 255
#c60 Sample Fail2.13
Fail
Fail 58 Fail 459
#c63 Sample Fail2.11
Fail
Fail 52 Fail 408
#c66 Sample Fail2.06
Fail
Fail 46 Fail 357
#c69 Sample Fail1.96
Fail
Fail 41 Fail 306
#c6c Sample Fail1.84
Fail
Fail 35 Fail 255
#c6f Sample Fail1.68
Fail
Fail 29 Fail 204
#c90 Sample Fail1.43
Fail
Fail 28 Fail 408
#c93 Sample Fail1.43
Fail
Fail 22 Fail 357
#c96 Sample Fail1.40
Fail
Fail 16 Fail 306
#c99 Sample Fail1.36
Fail
Fail 11 Fail 255
#c9c Sample Fail1.29
Fail
Fail 5 Fail 204
#c9f Sample Fail1.22
Fail
Fail 0 Fail 153
#cc0 Sample Fail1.05
Fail
Fail 1 Fail 357
#cc3 Sample Fail1.05
Fail
Fail 7 Fail 306
#cc6 Sample Fail1.06
Fail
Fail 13 Fail 255
#cc9 Sample Fail1.09
Fail
Fail 18 Fail 204
#ccc Sample Fail1.12
Fail
Fail 24 Fail 153
#ccf Sample Fail1.17
Fail
Fail 30 Fail 102
#cf0 Sample Fail1.53
Fail
Fail 31 Fail 408
#cf3 Sample Fail1.54
Fail
Fail 37 Fail 357
#cf6 Sample Fail1.55
Fail
Fail 42 Fail 306
#cf9 Sample Fail1.57
Fail
Fail 48 Fail 255
#cfc Sample Fail1.61
Fail
Fail 54 Fail 204
#cff Sample Fail1.66
Fail
Fail 60 Fail 153
#f00 Sample Fail2.22
Fail
Fail 103 Pass 612
#f03 Sample Fail2.20
Fail
Fail 97 Pass 561
#f06 Sample Fail2.14
Fail
Fail 91 Pass 510
#f09 Sample Fail2.04
Fail
Fail 85 Fail 459
#f0c Sample Fail1.90
Fail
Fail 79 Fail 408
#f0f Sample Fail1.74
Fail
Fail 74 Fail 357
#f30 Sample Fail2.03
Fail
Fail 73 Pass 561
#f33 Sample Fail2.02
Fail
Fail 67 Pass 510
#f36 Sample Fail1.97
Fail
Fail 61 Fail 459
#f39 Sample Fail1.88
Fail
Fail 55 Fail 408
#f3c Sample Fail1.77
Fail
Fail 49 Fail 357
#f3f Sample Fail1.62
Fail
Fail 44 Fail 306
#f60 Sample Fail1.63
Fail
Fail 43 Pass 510
#f63 Sample Fail1.62
Fail
Fail 37 Fail 459
#f66 Sample Fail1.59
Fail
Fail 31 Fail 408
#f69 Sample Fail1.53
Fail
Fail 25 Fail 357
#f6c Sample Fail1.45
Fail
Fail 19 Fail 306
#f6f Sample Fail1.35
Fail
Fail 14 Fail 255
#f90 Sample Fail1.19
Fail
Fail 13 Fail 459
#f93 Sample Fail1.18
Fail
Fail 7 Fail 408
#f96 Sample Fail1.16
Fail
Fail 1 Fail 357
#f99 Sample Fail1.13
Fail
Fail 4 Fail 306
#f9c Sample Fail1.09
Fail
Fail 9 Fail 255
#f9f Sample Fail1.03
Fail
Fail 15 Fail 204
#fc0 Sample Fail1.19
Fail
Fail 16 Fail 408
#fc3 Sample Fail1.20
Fail
Fail 22 Fail 357
#fc6 Sample Fail1.21
Fail
Fail 28 Fail 306
#fc9 Sample Fail1.23
Fail
Fail 34 Fail 255
#fcc Sample Fail1.27
Fail
Fail 39 Fail 204
#fcf Sample Fail1.32
Fail
Fail 45 Fail 153
#ff0 Sample Fail1.68
Fail
Fail 46 Fail 459
#ff3 Sample Fail1.68
Fail
Fail 52 Fail 408
#ff6 Sample Fail1.70
Fail
Fail 58 Fail 357
#ff9 Sample Fail1.72
Fail
Fail 64 Fail 306
#ffc Sample Fail1.75
Fail
Fail 69 Fail 255
#fff Sample Fail1.80
Fail
Fail 75 Fail 204

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.