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 #0c0

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #0c0, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #0c0
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text9.64
Pass Level AAA for regular text
Fail 119 Fail 204
#003 Sample Pass Level AAA for large text9.20
Pass Level AAA for regular text
Fail 113 Fail 255
#006 Sample Pass Level AAA for large text8.09
Pass Level AAA for regular text
Fail 108 Fail 306
#009 Sample Pass Level AAA for large text6.60
Pass level 2 fo regular text
Fail 102 Fail 357
#00c Sample Pass Level AAA for large text5.15
Pass level 2 fo regular text
Fail 96 Fail 408
#00f Sample Pass Level AA for large text3.94
Fail fo regular text
Fail 90 Fail 459
#030 Sample Pass Level AAA for large text6.54
Pass level 2 fo regular text
Fail 89 Fail 153
#033 Sample Pass Level AAA for large text6.33
Pass level 2 fo regular text
Fail 83 Fail 204
#036 Sample Pass Level AAA for large text5.79
Pass level 2 fo regular text
Fail 78 Fail 255
#039 Sample Pass Level AAA for large text4.98
Pass level 2 fo regular text
Fail 72 Fail 306
#03c Sample Pass Level AA for large text4.11
Fail fo regular text
Fail 66 Fail 357
#03f Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 60 Fail 408
#060 Sample Pass Level AA for large text3.32
Fail fo regular text
Fail 59 Fail 102
#063 Sample Pass Level AA for large text3.27
Fail fo regular text
Fail 54 Fail 153
#066 Sample Pass Level AA for large text3.12
Fail fo regular text
Fail 48 Fail 204
#069 Sample Fail2.87
Fail
Fail 42 Fail 255
#06c Sample Fail2.55
Fail
Fail 36 Fail 306
#06f Sample Fail2.22
Fail
Fail 30 Fail 357
#090 Sample Fail1.73
Fail
Fail 29 Fail 51
#093 Sample Fail1.72
Fail
Fail 24 Fail 102
#096 Sample Fail1.68
Fail
Fail 18 Fail 153
#099 Sample Fail1.60
Fail
Fail 12 Fail 204
#09c Sample Fail1.50
Fail
Fail 6 Fail 255
#09f Sample Fail1.38
Fail
Fail 0 Fail 306
#0c0 Sample Fail1.00
Fail
Fail 0 Fail 0
#0c3 Sample Fail1.00
Fail
Fail 5 Fail 51
#0c6 Sample Fail1.02
Fail
Fail 11 Fail 102
#0c9 Sample Fail1.05
Fail
Fail 17 Fail 153
#0cc Sample Fail1.09
Fail
Fail 23 Fail 204
#0cf Sample Fail1.15
Fail
Fail 29 Fail 255
#0f0 Sample Fail1.59
Fail
Fail 29 Fail 51
#0f3 Sample Fail1.59
Fail
Fail 35 Fail 102
#0f6 Sample Fail1.61
Fail
Fail 41 Fail 153
#0f9 Sample Fail1.64
Fail
Fail 47 Fail 204
#0fc Sample Fail1.68
Fail
Fail 53 Fail 255
#0ff Sample Fail1.74
Fail
Fail 59 Fail 306
#300 Sample Pass Level AAA for large text8.45
Pass Level AAA for regular text
Fail 104 Fail 255
#303 Sample Pass Level AAA for large text8.11
Pass Level AAA for regular text
Fail 98 Fail 306
#306 Sample Pass Level AAA for large text7.23
Pass Level AAA for regular text
Fail 92 Fail 357
#309 Sample Pass Level AAA for large text6.02
Pass level 2 fo regular text
Fail 87 Fail 408
#30c Sample Pass Level AAA for large text4.79
Pass level 2 fo regular text
Fail 81 Fail 459
#30f Sample Pass Level AA for large text3.73
Fail fo regular text
Fail 75 Pass 510
#330 Sample Pass Level AAA for large text5.97
Pass level 2 fo regular text
Fail 74 Fail 204
#333 Sample Pass Level AAA for large text5.80
Pass level 2 fo regular text
Fail 68 Fail 255
#336 Sample Pass Level AAA for large text5.34
Pass level 2 fo regular text
Fail 62 Fail 306
#339 Sample Pass Level AAA for large text4.65
Pass level 2 fo regular text
Fail 57 Fail 357
#33c Sample Pass Level AA for large text3.88
Fail fo regular text
Fail 51 Fail 408
#33f Sample Pass Level AA for large text3.15
Fail fo regular text
Fail 45 Fail 459
#360 Sample Pass Level AA for large text3.17
Fail fo regular text
Fail 44 Fail 153
#363 Sample Pass Level AA for large text3.12
Fail fo regular text
Fail 38 Fail 204
#366 Sample Fail2.98
Fail
Fail 32 Fail 255
#369 Sample Fail2.75
Fail
Fail 27 Fail 306
#36c Sample Fail2.46
Fail
Fail 21 Fail 357
#36f Sample Fail2.15
Fail
Fail 15 Fail 408
#390 Sample Fail1.69
Fail
Fail 14 Fail 102
#393 Sample Fail1.68
Fail
Fail 8 Fail 153
#396 Sample Fail1.64
Fail
Fail 3 Fail 204
#399 Sample Fail1.57
Fail
Fail 2 Fail 255
#39c Sample Fail1.47
Fail
Fail 8 Fail 306
#39f Sample Fail1.35
Fail
Fail 14 Fail 357
#3c0 Sample Fail1.01
Fail
Fail 15 Fail 51
#3c3 Sample Fail1.02
Fail
Fail 21 Fail 102
#3c6 Sample Fail1.03
Fail
Fail 26 Fail 153
#3c9 Sample Fail1.06
Fail
Fail 32 Fail 204
#3cc Sample Fail1.11
Fail
Fail 38 Fail 255
#3cf Sample Fail1.16
Fail
Fail 44 Fail 306
#3f0 Sample Fail1.60
Fail
Fail 45 Fail 102
#3f3 Sample Fail1.61
Fail
Fail 50 Fail 153
#3f6 Sample Fail1.62
Fail
Fail 56 Fail 204
#3f9 Sample Fail1.65
Fail
Fail 62 Fail 255
#3fc Sample Fail1.69
Fail
Fail 68 Fail 306
#3ff Sample Fail1.75
Fail
Fail 74 Fail 357
#600 Sample Pass Level AAA for large text6.16
Pass level 2 fo regular text
Fail 89 Fail 306
#603 Sample Pass Level AAA for large text5.98
Pass level 2 fo regular text
Fail 83 Fail 357
#606 Sample Pass Level AAA for large text5.49
Pass level 2 fo regular text
Fail 77 Fail 408
#609 Sample Pass Level AAA for large text4.76
Pass level 2 fo regular text
Fail 71 Fail 459
#60c Sample Pass Level AA for large text3.95
Fail fo regular text
Fail 65 Pass 510
#60f Sample Pass Level AA for large text3.20
Fail fo regular text
Fail 60 Pass 561
#630 Sample Pass Level AAA for large text4.73
Pass level 2 fo regular text
Fail 59 Fail 255
#633 Sample Pass Level AAA for large text4.62
Pass level 2 fo regular text
Fail 53 Fail 306
#636 Sample Pass Level AA for large text4.32
Fail fo regular text
Fail 47 Fail 357
#639 Sample Pass Level AA for large text3.86
Fail fo regular text
Fail 41 Fail 408
#63c Sample Pass Level AA for large text3.31
Fail fo regular text
Fail 36 Fail 459
#63f Sample Fail2.77
Fail
Fail 30 Pass 510
#660 Sample Fail2.78
Fail
Fail 29 Fail 204
#663 Sample Fail2.74
Fail
Fail 23 Fail 255
#666 Sample Fail2.63
Fail
Fail 17 Fail 306
#669 Sample Fail2.46
Fail
Fail 11 Fail 357
#66c Sample Fail2.22
Fail
Fail 6 Fail 408
#66f Sample Fail1.96
Fail
Fail 0 Fail 459
#690 Sample Fail1.57
Fail
Fail 0 Fail 153
#693 Sample Fail1.56
Fail
Fail 6 Fail 204
#696 Sample Fail1.53
Fail
Fail 12 Fail 255
#699 Sample Fail1.46
Fail
Fail 18 Fail 306
#69c Sample Fail1.38
Fail
Fail 23 Fail 357
#69f Sample Fail1.27
Fail
Fail 29 Fail 408
#6c0 Sample Fail1.06
Fail
Fail 30 Fail 102
#6c3 Sample Fail1.06
Fail
Fail 36 Fail 153
#6c6 Sample Fail1.08
Fail
Fail 42 Fail 204
#6c9 Sample Fail1.11
Fail
Fail 47 Fail 255
#6cc Sample Fail1.15
Fail
Fail 53 Fail 306
#6cf Sample Fail1.21
Fail
Fail 59 Fail 357
#6f0 Sample Fail1.65
Fail
Fail 60 Fail 153
#6f3 Sample Fail1.65
Fail
Fail 66 Fail 204
#6f6 Sample Fail1.67
Fail
Fail 72 Fail 255
#6f9 Sample Fail1.69
Fail
Fail 77 Fail 306
#6fc Sample Fail1.74
Fail
Fail 83 Fail 357
#6ff Sample Fail1.80
Fail
Fail 89 Fail 408
#900 Sample Pass Level AA for large text4.09
Fail fo regular text
Fail 74 Fail 357
#903 Sample Pass Level AA for large text4.01
Fail fo regular text
Fail 68 Fail 408
#906 Sample Pass Level AA for large text3.78
Fail fo regular text
Fail 62 Fail 459
#909 Sample Pass Level AA for large text3.42
Fail fo regular text
Fail 56 Pass 510
#90c Sample Fail2.99
Fail
Fail 50 Pass 561
#90f Sample Fail2.54
Fail
Fail 44 Pass 612
#930 Sample Pass Level AA for large text3.41
Fail fo regular text
Fail 44 Fail 306
#933 Sample Pass Level AA for large text3.35
Fail fo regular text
Fail 38 Fail 357
#936 Sample Pass Level AA for large text3.19
Fail fo regular text
Fail 32 Fail 408
#939 Sample Fail2.93
Fail
Fail 26 Fail 459
#93c Sample Fail2.60
Fail
Fail 20 Pass 510
#93f Sample Fail2.26
Fail
Fail 14 Pass 561
#960 Sample Fail2.26
Fail
Fail 14 Fail 255
#963 Sample Fail2.24
Fail
Fail 8 Fail 306
#966 Sample Fail2.17
Fail
Fail 2 Fail 357
#969 Sample Fail2.04
Fail
Fail 3 Fail 408
#96c Sample Fail1.88
Fail
Fail 9 Fail 459
#96f Sample Fail1.69
Fail
Fail 14 Pass 510
#990 Sample Fail1.39
Fail
Fail 15 Fail 204
#993 Sample Fail1.38
Fail
Fail 21 Fail 255
#996 Sample Fail1.36
Fail
Fail 27 Fail 306
#999 Sample Fail1.31
Fail
Fail 33 Fail 357
#99c Sample Fail1.24
Fail
Fail 39 Fail 408
#99f Sample Fail1.15
Fail
Fail 44 Fail 459
#9c0 Sample Fail1.14
Fail
Fail 45 Fail 153
#9c3 Sample Fail1.15
Fail
Fail 51 Fail 204
#9c6 Sample Fail1.16
Fail
Fail 57 Fail 255
#9c9 Sample Fail1.19
Fail
Fail 63 Fail 306
#9cc Sample Fail1.23
Fail
Fail 69 Fail 357
#9cf Sample Fail1.29
Fail
Fail 74 Fail 408
#9f0 Sample Fail1.73
Fail
Fail 75 Fail 204
#9f3 Sample Fail1.73
Fail
Fail 81 Fail 255
#9f6 Sample Fail1.75
Fail
Fail 87 Fail 306
#9f9 Sample Fail1.78
Fail
Fail 93 Fail 357
#9fc Sample Fail1.82
Fail
Fail 98 Fail 408
#9ff Sample Fail1.88
Fail
Fail 104 Fail 459
#c00 Sample Fail2.70
Fail
Fail 58 Fail 408
#c03 Sample Fail2.67
Fail
Fail 52 Fail 459
#c06 Sample Fail2.56
Fail
Fail 47 Pass 510
#c09 Sample Fail2.39
Fail
Fail 41 Pass 561
#c0c Sample Fail2.17
Fail
Fail 35 Pass 612
#c0f Sample Fail1.92
Fail
Fail 29 Pass 663
#c30 Sample Fail2.38
Fail
Fail 28 Fail 357
#c33 Sample Fail2.36
Fail
Fail 23 Fail 408
#c36 Sample Fail2.28
Fail
Fail 17 Fail 459
#c39 Sample Fail2.14
Fail
Fail 11 Pass 510
#c3c Sample Fail1.96
Fail
Fail 5 Pass 561
#c3f Sample Fail1.76
Fail
Fail 0 Pass 612
#c60 Sample Fail1.76
Fail
Fail 1 Fail 306
#c63 Sample Fail1.75
Fail
Fail 6 Fail 357
#c66 Sample Fail1.70
Fail
Fail 12 Fail 408
#c69 Sample Fail1.63
Fail
Fail 18 Fail 459
#c6c Sample Fail1.52
Fail
Fail 24 Pass 510
#c6f Sample Fail1.39
Fail
Fail 30 Pass 561
#c90 Sample Fail1.19
Fail
Fail 31 Fail 255
#c93 Sample Fail1.18
Fail
Fail 36 Fail 306
#c96 Sample Fail1.16
Fail
Fail 42 Fail 357
#c99 Sample Fail1.12
Fail
Fail 48 Fail 408
#c9c Sample Fail1.07
Fail
Fail 54 Fail 459
#c9f Sample Fail1.01
Fail
Fail 60 Pass 510
#cc0 Sample Fail1.27
Fail
Fail 60 Fail 204
#cc3 Sample Fail1.27
Fail
Fail 66 Fail 255
#cc6 Sample Fail1.29
Fail
Fail 72 Fail 306
#cc9 Sample Fail1.31
Fail
Fail 78 Fail 357
#ccc Sample Fail1.36
Fail
Fail 84 Fail 408
#ccf Sample Fail1.42
Fail
Fail 90 Fail 459
#cf0 Sample Fail1.85
Fail
Fail 90 Fail 255
#cf3 Sample Fail1.86
Fail
Fail 96 Fail 306
#cf6 Sample Fail1.87
Fail
Fail 102 Fail 357
#cf9 Sample Fail1.90
Fail
Fail 108 Fail 408
#cfc Sample Fail1.94
Fail
Fail 114 Fail 459
#cff Sample Fail2.00
Fail
Fail 120 Pass 510
#f00 Sample Fail1.83
Fail
Fail 43 Fail 459
#f03 Sample Fail1.82
Fail
Fail 37 Pass 510
#f06 Sample Fail1.77
Fail
Fail 31 Pass 561
#f09 Sample Fail1.69
Fail
Fail 26 Pass 612
#f0c Sample Fail1.57
Fail
Fail 20 Pass 663
#f0f Sample Fail1.44
Fail
Fail 14 Pass 714
#f30 Sample Fail1.68
Fail
Fail 13 Fail 408
#f33 Sample Fail1.67
Fail
Fail 7 Fail 459
#f36 Sample Fail1.63
Fail
Fail 1 Pass 510
#f39 Sample Fail1.56
Fail
Fail 3 Pass 561
#f3c Sample Fail1.46
Fail
Fail 9 Pass 612
#f3f Sample Fail1.34
Fail
Fail 15 Pass 663
#f60 Sample Fail1.35
Fail
Fail 16 Fail 357
#f63 Sample Fail1.34
Fail
Fail 22 Fail 408
#f66 Sample Fail1.31
Fail
Fail 27 Fail 459
#f69 Sample Fail1.27
Fail
Fail 33 Pass 510
#f6c Sample Fail1.20
Fail
Fail 39 Pass 561
#f6f Sample Fail1.12
Fail
Fail 45 Pass 612
#f90 Sample Fail1.02
Fail
Fail 46 Fail 306
#f93 Sample Fail1.02
Fail
Fail 52 Fail 357
#f96 Sample Fail1.04
Fail
Fail 57 Fail 408
#f99 Sample Fail1.07
Fail
Fail 63 Fail 459
#f9c Sample Fail1.11
Fail
Fail 69 Pass 510
#f9f Sample Fail1.17
Fail
Fail 75 Pass 561
#fc0 Sample Fail1.44
Fail
Fail 76 Fail 255
#fc3 Sample Fail1.45
Fail
Fail 82 Fail 306
#fc6 Sample Fail1.46
Fail
Fail 87 Fail 357
#fc9 Sample Fail1.49
Fail
Fail 93 Fail 408
#fcc Sample Fail1.53
Fail
Fail 99 Fail 459
#fcf Sample Fail1.59
Fail
Fail 105 Pass 510
#ff0 Sample Fail2.03
Fail
Fail 106 Fail 306
#ff3 Sample Fail2.03
Fail
Fail 111 Fail 357
#ff6 Sample Fail2.05
Fail
Fail 117 Fail 408
#ff9 Sample Fail2.08
Fail
Fail 123 Fail 459
#ffc Sample Fail2.12
Fail
Pass 129 Pass 510
#fff Sample Fail2.18
Fail
Pass 135 Pass 561

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.