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 #3c6

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #3c6, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #3c6
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text9.97
Pass Level AAA for regular text
Pass 146 Fail 357
#003 Sample Pass Level AAA for large text9.51
Pass Level AAA for regular text
Pass 140 Fail 306
#006 Sample Pass Level AAA for large text8.36
Pass Level AAA for regular text
Pass 134 Fail 255
#009 Sample Pass Level AAA for large text6.83
Pass level 2 fo regular text
Pass 129 Fail 306
#00c Sample Pass Level AAA for large text5.33
Pass level 2 fo regular text
Fail 123 Fail 357
#00f Sample Pass Level AA for large text4.08
Fail fo regular text
Fail 117 Fail 408
#030 Sample Pass Level AAA for large text6.77
Pass level 2 fo regular text
Fail 116 Fail 306
#033 Sample Pass Level AAA for large text6.55
Pass level 2 fo regular text
Fail 110 Fail 255
#036 Sample Pass Level AAA for large text5.99
Pass level 2 fo regular text
Fail 105 Fail 204
#039 Sample Pass Level AAA for large text5.16
Pass level 2 fo regular text
Fail 99 Fail 255
#03c Sample Pass Level AA for large text4.25
Fail fo regular text
Fail 93 Fail 306
#03f Sample Pass Level AA for large text3.42
Fail fo regular text
Fail 87 Fail 357
#060 Sample Pass Level AA for large text3.44
Fail fo regular text
Fail 86 Fail 255
#063 Sample Pass Level AA for large text3.38
Fail fo regular text
Fail 80 Fail 204
#066 Sample Pass Level AA for large text3.22
Fail fo regular text
Fail 75 Fail 153
#069 Sample Fail2.97
Fail
Fail 69 Fail 204
#06c Sample Fail2.64
Fail
Fail 63 Fail 255
#06f Sample Fail2.29
Fail
Fail 57 Fail 306
#090 Sample Fail1.79
Fail
Fail 56 Fail 204
#093 Sample Fail1.78
Fail
Fail 51 Fail 153
#096 Sample Fail1.73
Fail
Fail 45 Fail 102
#099 Sample Fail1.66
Fail
Fail 39 Fail 153
#09c Sample Fail1.55
Fail
Fail 33 Fail 204
#09f Sample Fail1.42
Fail
Fail 27 Fail 255
#0c0 Sample Fail1.03
Fail
Fail 26 Fail 153
#0c3 Sample Fail1.03
Fail
Fail 21 Fail 102
#0c6 Sample Fail1.01
Fail
Fail 15 Fail 51
#0c9 Sample Fail1.01
Fail
Fail 9 Fail 102
#0cc Sample Fail1.05
Fail
Fail 3 Fail 153
#0cf Sample Fail1.11
Fail
Fail 2 Fail 204
#0f0 Sample Fail1.54
Fail
Fail 3 Fail 204
#0f3 Sample Fail1.54
Fail
Fail 8 Fail 153
#0f6 Sample Fail1.55
Fail
Fail 14 Fail 102
#0f9 Sample Fail1.58
Fail
Fail 20 Fail 153
#0fc Sample Fail1.62
Fail
Fail 26 Fail 204
#0ff Sample Fail1.68
Fail
Fail 32 Fail 255
#300 Sample Pass Level AAA for large text8.74
Pass Level AAA for regular text
Pass 131 Fail 306
#303 Sample Pass Level AAA for large text8.39
Pass Level AAA for regular text
Fail 125 Fail 255
#306 Sample Pass Level AAA for large text7.48
Pass Level AAA for regular text
Fail 119 Fail 204
#309 Sample Pass Level AAA for large text6.23
Pass level 2 fo regular text
Fail 113 Fail 255
#30c Sample Pass Level AAA for large text4.95
Pass level 2 fo regular text
Fail 108 Fail 306
#30f Sample Pass Level AA for large text3.86
Fail fo regular text
Fail 102 Fail 357
#330 Sample Pass Level AAA for large text6.18
Pass level 2 fo regular text
Fail 101 Fail 255
#333 Sample Pass Level AAA for large text6.00
Pass level 2 fo regular text
Fail 95 Fail 204
#336 Sample Pass Level AAA for large text5.52
Pass level 2 fo regular text
Fail 89 Fail 153
#339 Sample Pass Level AAA for large text4.81
Pass level 2 fo regular text
Fail 83 Fail 204
#33c Sample Pass Level AA for large text4.01
Fail fo regular text
Fail 78 Fail 255
#33f Sample Pass Level AA for large text3.26
Fail fo regular text
Fail 72 Fail 306
#360 Sample Pass Level AA for large text3.28
Fail fo regular text
Fail 71 Fail 204
#363 Sample Pass Level AA for large text3.23
Fail fo regular text
Fail 65 Fail 153
#366 Sample Pass Level AA for large text3.08
Fail fo regular text
Fail 59 Fail 102
#369 Sample Fail2.85
Fail
Fail 54 Fail 153
#36c Sample Fail2.55
Fail
Fail 48 Fail 204
#36f Sample Fail2.22
Fail
Fail 42 Fail 255
#390 Sample Fail1.75
Fail
Fail 41 Fail 153
#393 Sample Fail1.74
Fail
Fail 35 Fail 102
#396 Sample Fail1.69
Fail
Fail 29 Fail 51
#399 Sample Fail1.62
Fail
Fail 24 Fail 102
#39c Sample Fail1.52
Fail
Fail 18 Fail 153
#39f Sample Fail1.40
Fail
Fail 12 Fail 204
#3c0 Sample Fail1.02
Fail
Fail 11 Fail 102
#3c3 Sample Fail1.01
Fail
Fail 5 Fail 51
#3c6 Sample Fail1.00
Fail
Fail 0 Fail 0
#3c9 Sample Fail1.03
Fail
Fail 5 Fail 51
#3cc Sample Fail1.07
Fail
Fail 11 Fail 102
#3cf Sample Fail1.13
Fail
Fail 17 Fail 153
#3f0 Sample Fail1.55
Fail
Fail 18 Fail 153
#3f3 Sample Fail1.55
Fail
Fail 24 Fail 102
#3f6 Sample Fail1.57
Fail
Fail 29 Fail 51
#3f9 Sample Fail1.60
Fail
Fail 35 Fail 102
#3fc Sample Fail1.64
Fail
Fail 41 Fail 153
#3ff Sample Fail1.69
Fail
Fail 47 Fail 204
#600 Sample Pass Level AAA for large text6.37
Pass level 2 fo regular text
Fail 116 Fail 357
#603 Sample Pass Level AAA for large text6.18
Pass level 2 fo regular text
Fail 110 Fail 306
#606 Sample Pass Level AAA for large text5.67
Pass level 2 fo regular text
Fail 104 Fail 255
#609 Sample Pass Level AAA for large text4.92
Pass level 2 fo regular text
Fail 98 Fail 306
#60c Sample Pass Level AA for large text4.09
Fail fo regular text
Fail 92 Fail 357
#60f Sample Pass Level AA for large text3.31
Fail fo regular text
Fail 87 Fail 408
#630 Sample Pass Level AAA for large text4.89
Pass level 2 fo regular text
Fail 86 Fail 306
#633 Sample Pass Level AAA for large text4.78
Pass level 2 fo regular text
Fail 80 Fail 255
#636 Sample Pass Level AA for large text4.47
Fail fo regular text
Fail 74 Fail 204
#639 Sample Pass Level AA for large text3.99
Fail fo regular text
Fail 68 Fail 255
#63c Sample Pass Level AA for large text3.43
Fail fo regular text
Fail 62 Fail 306
#63f Sample Fail2.86
Fail
Fail 57 Fail 357
#660 Sample Fail2.88
Fail
Fail 56 Fail 255
#663 Sample Fail2.84
Fail
Fail 50 Fail 204
#666 Sample Fail2.73
Fail
Fail 44 Fail 153
#669 Sample Fail2.54
Fail
Fail 38 Fail 204
#66c Sample Fail2.30
Fail
Fail 32 Fail 255
#66f Sample Fail2.03
Fail
Fail 27 Fail 306
#690 Sample Fail1.63
Fail
Fail 26 Fail 204
#693 Sample Fail1.62
Fail
Fail 20 Fail 153
#696 Sample Fail1.58
Fail
Fail 14 Fail 102
#699 Sample Fail1.51
Fail
Fail 8 Fail 153
#69c Sample Fail1.43
Fail
Fail 3 Fail 204
#69f Sample Fail1.32
Fail
Fail 2 Fail 255
#6c0 Sample Fail1.02
Fail
Fail 3 Fail 153
#6c3 Sample Fail1.03
Fail
Fail 9 Fail 102
#6c6 Sample Fail1.04
Fail
Fail 15 Fail 51
#6c9 Sample Fail1.07
Fail
Fail 21 Fail 102
#6cc Sample Fail1.11
Fail
Fail 26 Fail 153
#6cf Sample Fail1.17
Fail
Fail 32 Fail 204
#6f0 Sample Fail1.59
Fail
Fail 33 Fail 204
#6f3 Sample Fail1.60
Fail
Fail 39 Fail 153
#6f6 Sample Fail1.61
Fail
Fail 45 Fail 102
#6f9 Sample Fail1.64
Fail
Fail 51 Fail 153
#6fc Sample Fail1.68
Fail
Fail 56 Fail 204
#6ff Sample Fail1.74
Fail
Fail 62 Fail 255
#900 Sample Pass Level AA for large text4.23
Fail fo regular text
Fail 100 Fail 408
#903 Sample Pass Level AA for large text4.15
Fail fo regular text
Fail 95 Fail 357
#906 Sample Pass Level AA for large text3.92
Fail fo regular text
Fail 89 Fail 306
#909 Sample Pass Level AA for large text3.54
Fail fo regular text
Fail 83 Fail 357
#90c Sample Pass Level AA for large text3.09
Fail fo regular text
Fail 77 Fail 408
#90f Sample Fail2.62
Fail
Fail 71 Fail 459
#930 Sample Pass Level AA for large text3.53
Fail fo regular text
Fail 70 Fail 357
#933 Sample Pass Level AA for large text3.47
Fail fo regular text
Fail 65 Fail 306
#936 Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 59 Fail 255
#939 Sample Pass Level AA for large text3.03
Fail fo regular text
Fail 53 Fail 306
#93c Sample Fail2.69
Fail
Fail 47 Fail 357
#93f Sample Fail2.33
Fail
Fail 41 Fail 408
#960 Sample Fail2.34
Fail
Fail 41 Fail 306
#963 Sample Fail2.32
Fail
Fail 35 Fail 255
#966 Sample Fail2.24
Fail
Fail 29 Fail 204
#969 Sample Fail2.11
Fail
Fail 23 Fail 255
#96c Sample Fail1.94
Fail
Fail 17 Fail 306
#96f Sample Fail1.75
Fail
Fail 11 Fail 357
#990 Sample Fail1.44
Fail
Fail 11 Fail 255
#993 Sample Fail1.43
Fail
Fail 5 Fail 204
#996 Sample Fail1.40
Fail
Fail 0 Fail 153
#999 Sample Fail1.35
Fail
Fail 6 Fail 204
#99c Sample Fail1.28
Fail
Fail 12 Fail 255
#99f Sample Fail1.19
Fail
Fail 18 Fail 306
#9c0 Sample Fail1.10
Fail
Fail 18 Fail 204
#9c3 Sample Fail1.11
Fail
Fail 24 Fail 153
#9c6 Sample Fail1.12
Fail
Fail 30 Fail 102
#9c9 Sample Fail1.15
Fail
Fail 36 Fail 153
#9cc Sample Fail1.19
Fail
Fail 42 Fail 204
#9cf Sample Fail1.25
Fail
Fail 47 Fail 255
#9f0 Sample Fail1.67
Fail
Fail 48 Fail 255
#9f3 Sample Fail1.68
Fail
Fail 54 Fail 204
#9f6 Sample Fail1.69
Fail
Fail 60 Fail 153
#9f9 Sample Fail1.72
Fail
Fail 66 Fail 204
#9fc Sample Fail1.76
Fail
Fail 72 Fail 255
#9ff Sample Fail1.82
Fail
Fail 77 Fail 306
#c00 Sample Fail2.79
Fail
Fail 85 Fail 459
#c03 Sample Fail2.76
Fail
Fail 79 Fail 408
#c06 Sample Fail2.65
Fail
Fail 74 Fail 357
#c09 Sample Fail2.48
Fail
Fail 68 Fail 408
#c0c Sample Fail2.25
Fail
Fail 62 Fail 459
#c0f Sample Fail1.99
Fail
Fail 56 Pass 510
#c30 Sample Fail2.47
Fail
Fail 55 Fail 408
#c33 Sample Fail2.44
Fail
Fail 49 Fail 357
#c36 Sample Fail2.36
Fail
Fail 44 Fail 306
#c39 Sample Fail2.22
Fail
Fail 38 Fail 357
#c3c Sample Fail2.03
Fail
Fail 32 Fail 408
#c3f Sample Fail1.82
Fail
Fail 26 Fail 459
#c60 Sample Fail1.82
Fail
Fail 25 Fail 357
#c63 Sample Fail1.81
Fail
Fail 19 Fail 306
#c66 Sample Fail1.76
Fail
Fail 14 Fail 255
#c69 Sample Fail1.68
Fail
Fail 8 Fail 306
#c6c Sample Fail1.57
Fail
Fail 2 Fail 357
#c6f Sample Fail1.44
Fail
Fail 3 Fail 408
#c90 Sample Fail1.23
Fail
Fail 4 Fail 306
#c93 Sample Fail1.22
Fail
Fail 9 Fail 255
#c96 Sample Fail1.20
Fail
Fail 15 Fail 204
#c99 Sample Fail1.16
Fail
Fail 21 Fail 255
#c9c Sample Fail1.11
Fail
Fail 27 Fail 306
#c9f Sample Fail1.04
Fail
Fail 33 Fail 357
#cc0 Sample Fail1.22
Fail
Fail 34 Fail 255
#cc3 Sample Fail1.23
Fail
Fail 39 Fail 204
#cc6 Sample Fail1.24
Fail
Fail 45 Fail 153
#cc9 Sample Fail1.27
Fail
Fail 51 Fail 204
#ccc Sample Fail1.31
Fail
Fail 57 Fail 255
#ccf Sample Fail1.37
Fail
Fail 63 Fail 306
#cf0 Sample Fail1.79
Fail
Fail 64 Fail 306
#cf3 Sample Fail1.80
Fail
Fail 69 Fail 255
#cf6 Sample Fail1.81
Fail
Fail 75 Fail 204
#cf9 Sample Fail1.84
Fail
Fail 81 Fail 255
#cfc Sample Fail1.88
Fail
Fail 87 Fail 306
#cff Sample Fail1.94
Fail
Fail 93 Fail 357
#f00 Sample Fail1.90
Fail
Fail 70 Pass 510
#f03 Sample Fail1.88
Fail
Fail 64 Fail 459
#f06 Sample Fail1.83
Fail
Fail 58 Fail 408
#f09 Sample Fail1.75
Fail
Fail 52 Fail 459
#f0c Sample Fail1.63
Fail
Fail 47 Pass 510
#f0f Sample Fail1.49
Fail
Fail 41 Pass 561
#f30 Sample Fail1.74
Fail
Fail 40 Fail 459
#f33 Sample Fail1.73
Fail
Fail 34 Fail 408
#f36 Sample Fail1.68
Fail
Fail 28 Fail 357
#f39 Sample Fail1.61
Fail
Fail 23 Fail 408
#f3c Sample Fail1.51
Fail
Fail 17 Fail 459
#f3f Sample Fail1.39
Fail
Fail 11 Pass 510
#f60 Sample Fail1.39
Fail
Fail 10 Fail 408
#f63 Sample Fail1.38
Fail
Fail 4 Fail 357
#f66 Sample Fail1.36
Fail
Fail 1 Fail 306
#f69 Sample Fail1.31
Fail
Fail 6 Fail 357
#f6c Sample Fail1.24
Fail
Fail 12 Fail 408
#f6f Sample Fail1.16
Fail
Fail 18 Fail 459
#f90 Sample Fail1.02
Fail
Fail 19 Fail 357
#f93 Sample Fail1.01
Fail
Fail 25 Fail 306
#f96 Sample Fail1.00
Fail
Fail 31 Fail 255
#f99 Sample Fail1.03
Fail
Fail 36 Fail 306
#f9c Sample Fail1.07
Fail
Fail 42 Fail 357
#f9f Sample Fail1.13
Fail
Fail 48 Fail 408
#fc0 Sample Fail1.39
Fail
Fail 49 Fail 306
#fc3 Sample Fail1.40
Fail
Fail 55 Fail 255
#fc6 Sample Fail1.41
Fail
Fail 60 Fail 204
#fc9 Sample Fail1.44
Fail
Fail 66 Fail 255
#fcc Sample Fail1.48
Fail
Fail 72 Fail 306
#fcf Sample Fail1.54
Fail
Fail 78 Fail 357
#ff0 Sample Fail1.96
Fail
Fail 79 Fail 357
#ff3 Sample Fail1.97
Fail
Fail 85 Fail 306
#ff6 Sample Fail1.98
Fail
Fail 90 Fail 255
#ff9 Sample Fail2.01
Fail
Fail 96 Fail 306
#ffc Sample Fail2.05
Fail
Fail 102 Fail 357
#fff Sample Fail2.11
Fail
Fail 108 Fail 408

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.