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 #999

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #999, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #999
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AAA for large text7.37
Pass Level AAA for regular text
Pass 153 Fail 459
#003 Sample Pass Level AAA for large text7.03
Pass Level AAA for regular text
Pass 147 Fail 408
#006 Sample Pass Level AAA for large text6.18
Pass level 2 fo regular text
Pass 141 Fail 357
#009 Sample Pass Level AAA for large text5.05
Pass level 2 fo regular text
Pass 135 Fail 306
#00c Sample Pass Level AA for large text3.94
Fail fo regular text
Pass 129 Fail 357
#00f Sample Pass Level AA for large text3.02
Fail fo regular text
Fail 123 Fail 408
#030 Sample Pass Level AAA for large text5.00
Pass level 2 fo regular text
Fail 123 Fail 408
#033 Sample Pass Level AAA for large text4.85
Pass level 2 fo regular text
Fail 117 Fail 357
#036 Sample Pass Level AA for large text4.43
Fail fo regular text
Fail 111 Fail 306
#039 Sample Pass Level AA for large text3.81
Fail fo regular text
Fail 105 Fail 255
#03c Sample Pass Level AA for large text3.14
Fail fo regular text
Fail 99 Fail 306
#03f Sample Fail2.53
Fail
Fail 93 Fail 357
#060 Sample Fail2.54
Fail
Fail 93 Fail 357
#063 Sample Fail2.50
Fail
Fail 87 Fail 306
#066 Sample Fail2.38
Fail
Fail 81 Fail 255
#069 Sample Fail2.19
Fail
Fail 75 Fail 204
#06c Sample Fail1.95
Fail
Fail 69 Fail 255
#06f Sample Fail1.70
Fail
Fail 64 Fail 306
#090 Sample Fail1.33
Fail
Fail 63 Fail 306
#093 Sample Fail1.32
Fail
Fail 57 Fail 255
#096 Sample Fail1.28
Fail
Fail 51 Fail 204
#099 Sample Fail1.23
Fail
Fail 45 Fail 153
#09c Sample Fail1.15
Fail
Fail 39 Fail 204
#09f Sample Fail1.05
Fail
Fail 34 Fail 255
#0c0 Sample Fail1.31
Fail
Fail 33 Fail 357
#0c3 Sample Fail1.31
Fail
Fail 27 Fail 306
#0c6 Sample Fail1.33
Fail
Fail 21 Fail 255
#0c9 Sample Fail1.37
Fail
Fail 15 Fail 204
#0cc Sample Fail1.43
Fail
Fail 9 Fail 255
#0cf Sample Fail1.50
Fail
Fail 4 Fail 306
#0f0 Sample Fail2.08
Fail
Fail 3 Fail 408
#0f3 Sample Fail2.08
Fail
Fail 2 Fail 357
#0f6 Sample Fail2.10
Fail
Fail 8 Fail 306
#0f9 Sample Fail2.14
Fail
Fail 14 Fail 255
#0fc Sample Fail2.19
Fail
Fail 19 Fail 306
#0ff Sample Fail2.27
Fail
Fail 25 Fail 357
#300 Sample Pass Level AAA for large text6.46
Pass level 2 fo regular text
Pass 137 Fail 408
#303 Sample Pass Level AAA for large text6.20
Pass level 2 fo regular text
Pass 131 Fail 357
#306 Sample Pass Level AAA for large text5.53
Pass level 2 fo regular text
Pass 126 Fail 306
#309 Sample Pass Level AAA for large text4.60
Pass level 2 fo regular text
Fail 120 Fail 255
#30c Sample Pass Level AA for large text3.66
Fail fo regular text
Fail 114 Fail 306
#30f Sample Fail2.85
Fail
Fail 108 Fail 357
#330 Sample Pass Level AAA for large text4.57
Pass level 2 fo regular text
Fail 107 Fail 357
#333 Sample Pass Level AA for large text4.43
Fail fo regular text
Fail 102 Fail 306
#336 Sample Pass Level AA for large text4.08
Fail fo regular text
Fail 96 Fail 255
#339 Sample Pass Level AA for large text3.55
Fail fo regular text
Fail 90 Fail 204
#33c Sample Fail2.96
Fail
Fail 84 Fail 255
#33f Sample Fail2.41
Fail
Fail 78 Fail 306
#360 Sample Fail2.42
Fail
Fail 77 Fail 306
#363 Sample Fail2.39
Fail
Fail 72 Fail 255
#366 Sample Fail2.28
Fail
Fail 66 Fail 204
#369 Sample Fail2.11
Fail
Fail 60 Fail 153
#36c Sample Fail1.88
Fail
Fail 54 Fail 204
#36f Sample Fail1.64
Fail
Fail 48 Fail 255
#390 Sample Fail1.29
Fail
Fail 47 Fail 255
#393 Sample Fail1.28
Fail
Fail 42 Fail 204
#396 Sample Fail1.25
Fail
Fail 36 Fail 153
#399 Sample Fail1.20
Fail
Fail 30 Fail 102
#39c Sample Fail1.12
Fail
Fail 24 Fail 153
#39f Sample Fail1.03
Fail
Fail 18 Fail 204
#3c0 Sample Fail1.33
Fail
Fail 18 Fail 306
#3c3 Sample Fail1.33
Fail
Fail 12 Fail 255
#3c6 Sample Fail1.35
Fail
Fail 6 Fail 204
#3c9 Sample Fail1.39
Fail
Fail 0 Fail 153
#3cc Sample Fail1.44
Fail
Fail 5 Fail 204
#3cf Sample Fail1.52
Fail
Fail 11 Fail 255
#3f0 Sample Fail2.10
Fail
Fail 11 Fail 357
#3f3 Sample Fail2.10
Fail
Fail 17 Fail 306
#3f6 Sample Fail2.12
Fail
Fail 23 Fail 255
#3f9 Sample Fail2.16
Fail
Fail 29 Fail 204
#3fc Sample Fail2.21
Fail
Fail 35 Fail 255
#3ff Sample Fail2.29
Fail
Fail 41 Fail 306
#600 Sample Pass Level AAA for large text4.71
Pass level 2 fo regular text
Fail 122 Fail 357
#603 Sample Pass Level AAA for large text4.57
Pass level 2 fo regular text
Fail 116 Fail 306
#606 Sample Pass Level AA for large text4.20
Fail fo regular text
Fail 110 Fail 255
#609 Sample Pass Level AA for large text3.64
Fail fo regular text
Fail 105 Fail 204
#60c Sample Pass Level AA for large text3.02
Fail fo regular text
Fail 99 Fail 255
#60f Sample Fail2.45
Fail
Fail 93 Fail 306
#630 Sample Pass Level AA for large text3.62
Fail fo regular text
Fail 92 Fail 306
#633 Sample Pass Level AA for large text3.53
Fail fo regular text
Fail 86 Fail 255
#636 Sample Pass Level AA for large text3.30
Fail fo regular text
Fail 80 Fail 204
#639 Sample Fail2.95
Fail
Fail 75 Fail 153
#63c Sample Fail2.53
Fail
Fail 69 Fail 204
#63f Sample Fail2.12
Fail
Fail 63 Fail 255
#660 Sample Fail2.13
Fail
Fail 62 Fail 255
#663 Sample Fail2.10
Fail
Fail 56 Fail 204
#666 Sample Fail2.02
Fail
Fail 51 Fail 153
#669 Sample Fail1.88
Fail
Fail 45 Fail 102
#66c Sample Fail1.70
Fail
Fail 39 Fail 153
#66f Sample Fail1.50
Fail
Fail 33 Fail 204
#690 Sample Fail1.20
Fail
Fail 32 Fail 204
#693 Sample Fail1.19
Fail
Fail 26 Fail 153
#696 Sample Fail1.17
Fail
Fail 21 Fail 102
#699 Sample Fail1.12
Fail
Fail 15 Fail 51
#69c Sample Fail1.05
Fail
Fail 9 Fail 102
#69f Sample Fail1.03
Fail
Fail 3 Fail 153
#6c0 Sample Fail1.38
Fail
Fail 2 Fail 255
#6c3 Sample Fail1.39
Fail
Fail 3 Fail 204
#6c6 Sample Fail1.41
Fail
Fail 8 Fail 153
#6c9 Sample Fail1.45
Fail
Fail 14 Fail 102
#6cc Sample Fail1.50
Fail
Fail 20 Fail 153
#6cf Sample Fail1.58
Fail
Fail 26 Fail 204
#6f0 Sample Fail2.15
Fail
Fail 27 Fail 306
#6f3 Sample Fail2.16
Fail
Fail 32 Fail 255
#6f6 Sample Fail2.18
Fail
Fail 38 Fail 204
#6f9 Sample Fail2.22
Fail
Fail 44 Fail 153
#6fc Sample Fail2.27
Fail
Fail 50 Fail 204
#6ff Sample Fail2.35
Fail
Fail 56 Fail 255
#900 Sample Pass Level AA for large text3.13
Fail fo regular text
Fail 107 Fail 306
#903 Sample Pass Level AA for large text3.07
Fail fo regular text
Fail 101 Fail 255
#906 Sample Fail2.89
Fail
Fail 95 Fail 204
#909 Sample Fail2.62
Fail
Fail 89 Fail 153
#90c Sample Fail2.28
Fail
Fail 83 Fail 204
#90f Sample Fail1.94
Fail
Fail 78 Fail 255
#930 Sample Fail2.61
Fail
Fail 77 Fail 255
#933 Sample Fail2.56
Fail
Fail 71 Fail 204
#936 Sample Fail2.44
Fail
Fail 65 Fail 153
#939 Sample Fail2.24
Fail
Fail 59 Fail 102
#93c Sample Fail1.99
Fail
Fail 54 Fail 153
#93f Sample Fail1.73
Fail
Fail 48 Fail 204
#960 Sample Fail1.73
Fail
Fail 47 Fail 204
#963 Sample Fail1.71
Fail
Fail 41 Fail 153
#966 Sample Fail1.66
Fail
Fail 35 Fail 102
#969 Sample Fail1.56
Fail
Fail 29 Fail 51
#96c Sample Fail1.44
Fail
Fail 24 Fail 102
#96f Sample Fail1.29
Fail
Fail 18 Fail 153
#990 Sample Fail1.07
Fail
Fail 17 Fail 153
#993 Sample Fail1.06
Fail
Fail 11 Fail 102
#996 Sample Fail1.04
Fail
Fail 5 Fail 51
#999 Sample Fail1.00
Fail
Fail 0 Fail 0
#99c Sample Fail1.06
Fail
Fail 5 Fail 51
#99f Sample Fail1.13
Fail
Fail 11 Fail 102
#9c0 Sample Fail1.49
Fail
Fail 12 Fail 204
#9c3 Sample Fail1.50
Fail
Fail 18 Fail 153
#9c6 Sample Fail1.52
Fail
Fail 24 Fail 102
#9c9 Sample Fail1.55
Fail
Fail 29 Fail 51
#9cc Sample Fail1.61
Fail
Fail 35 Fail 102
#9cf Sample Fail1.69
Fail
Fail 41 Fail 153
#9f0 Sample Fail2.26
Fail
Fail 42 Fail 255
#9f3 Sample Fail2.27
Fail
Fail 48 Fail 204
#9f6 Sample Fail2.29
Fail
Fail 54 Fail 153
#9f9 Sample Fail2.32
Fail
Fail 59 Fail 102
#9fc Sample Fail2.38
Fail
Fail 65 Fail 153
#9ff Sample Fail2.46
Fail
Fail 71 Fail 204
#c00 Sample Fail2.07
Fail
Fail 92 Fail 357
#c03 Sample Fail2.04
Fail
Fail 86 Fail 306
#c06 Sample Fail1.96
Fail
Fail 80 Fail 255
#c09 Sample Fail1.83
Fail
Fail 74 Fail 204
#c0c Sample Fail1.66
Fail
Fail 68 Fail 255
#c0f Sample Fail1.47
Fail
Fail 62 Fail 306
#c30 Sample Fail1.82
Fail
Fail 62 Fail 306
#c33 Sample Fail1.80
Fail
Fail 56 Fail 255
#c36 Sample Fail1.74
Fail
Fail 50 Fail 204
#c39 Sample Fail1.64
Fail
Fail 44 Fail 153
#c3c Sample Fail1.50
Fail
Fail 38 Fail 204
#c3f Sample Fail1.34
Fail
Fail 32 Fail 255
#c60 Sample Fail1.35
Fail
Fail 32 Fail 255
#c63 Sample Fail1.34
Fail
Fail 26 Fail 204
#c66 Sample Fail1.30
Fail
Fail 20 Fail 153
#c69 Sample Fail1.24
Fail
Fail 14 Fail 102
#c6c Sample Fail1.16
Fail
Fail 8 Fail 153
#c6f Sample Fail1.07
Fail
Fail 3 Fail 204
#c90 Sample Fail1.10
Fail
Fail 2 Fail 204
#c93 Sample Fail1.11
Fail
Fail 3 Fail 153
#c96 Sample Fail1.13
Fail
Fail 9 Fail 102
#c99 Sample Fail1.16
Fail
Fail 15 Fail 51
#c9c Sample Fail1.22
Fail
Fail 21 Fail 102
#c9f Sample Fail1.30
Fail
Fail 26 Fail 153
#cc0 Sample Fail1.66
Fail
Fail 27 Fail 255
#cc3 Sample Fail1.66
Fail
Fail 33 Fail 204
#cc6 Sample Fail1.68
Fail
Fail 39 Fail 153
#cc9 Sample Fail1.72
Fail
Fail 45 Fail 102
#ccc Sample Fail1.77
Fail
Fail 51 Fail 153
#ccf Sample Fail1.85
Fail
Fail 56 Fail 204
#cf0 Sample Fail2.42
Fail
Fail 57 Fail 306
#cf3 Sample Fail2.43
Fail
Fail 63 Fail 255
#cf6 Sample Fail2.45
Fail
Fail 69 Fail 204
#cf9 Sample Fail2.49
Fail
Fail 75 Fail 153
#cfc Sample Fail2.54
Fail
Fail 80 Fail 204
#cff Sample Fail2.62
Fail
Fail 86 Fail 255
#f00 Sample Fail1.40
Fail
Fail 76 Fail 408
#f03 Sample Fail1.39
Fail
Fail 70 Fail 357
#f06 Sample Fail1.35
Fail
Fail 65 Fail 306
#f09 Sample Fail1.29
Fail
Fail 59 Fail 255
#f0c Sample Fail1.20
Fail
Fail 53 Fail 306
#f0f Sample Fail1.10
Fail
Fail 47 Fail 357
#f30 Sample Fail1.29
Fail
Fail 46 Fail 357
#f33 Sample Fail1.28
Fail
Fail 41 Fail 306
#f36 Sample Fail1.25
Fail
Fail 35 Fail 255
#f39 Sample Fail1.19
Fail
Fail 29 Fail 204
#f3c Sample Fail1.12
Fail
Fail 23 Fail 255
#f3f Sample Fail1.03
Fail
Fail 17 Fail 306
#f60 Sample Fail1.03
Fail
Fail 16 Fail 306
#f63 Sample Fail1.02
Fail
Fail 11 Fail 255
#f66 Sample Fail1.00
Fail
Fail 5 Fail 204
#f69 Sample Fail1.03
Fail
Fail 0 Fail 153
#f6c Sample Fail1.09
Fail
Fail 6 Fail 204
#f6f Sample Fail1.17
Fail
Fail 12 Fail 255
#f90 Sample Fail1.33
Fail
Fail 13 Fail 255
#f93 Sample Fail1.34
Fail
Fail 18 Fail 204
#f96 Sample Fail1.36
Fail
Fail 24 Fail 153
#f99 Sample Fail1.39
Fail
Fail 30 Fail 102
#f9c Sample Fail1.45
Fail
Fail 36 Fail 153
#f9f Sample Fail1.53
Fail
Fail 42 Fail 204
#fc0 Sample Fail1.88
Fail
Fail 42 Fail 306
#fc3 Sample Fail1.89
Fail
Fail 48 Fail 255
#fc6 Sample Fail1.91
Fail
Fail 54 Fail 204
#fc9 Sample Fail1.95
Fail
Fail 60 Fail 153
#fcc Sample Fail2.00
Fail
Fail 66 Fail 204
#fcf Sample Fail2.08
Fail
Fail 72 Fail 255
#ff0 Sample Fail2.65
Fail
Fail 72 Fail 357
#ff3 Sample Fail2.66
Fail
Fail 78 Fail 306
#ff6 Sample Fail2.68
Fail
Fail 84 Fail 255
#ff9 Sample Fail2.72
Fail
Fail 90 Fail 204
#ffc Sample Fail2.77
Fail
Fail 96 Fail 255
#fff Sample Fail2.85
Fail
Fail 102 Fail 306

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.