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 #c09

The following table shows the luminosity contrast ratios for all web safe colours with a background colour of #c09, along with the difference in brightness and the difference in colour used by the colour contrast analyser for comparison.

Luminosity Ratios with background: #c09
Foreground Colour Sample Luminosity Contrast Ratio Difference in Brightness Difference in Colour
#000 Sample Pass Level AA for large text4.03
Fail fo regular text
Fail 78 Fail 357
#003 Sample Pass Level AA for large text3.84
Fail fo regular text
Fail 72 Fail 306
#006 Sample Pass Level AA for large text3.38
Fail fo regular text
Fail 66 Fail 255
#009 Sample Fail2.76
Fail
Fail 60 Fail 204
#00c Sample Fail2.15
Fail
Fail 55 Fail 255
#00f Sample Fail1.65
Fail
Fail 49 Fail 306
#030 Sample Fail2.73
Fail
Fail 48 Fail 408
#033 Sample Fail2.65
Fail
Fail 42 Fail 357
#036 Sample Fail2.42
Fail
Fail 36 Fail 306
#039 Sample Fail2.08
Fail
Fail 31 Fail 255
#03c Sample Fail1.72
Fail
Fail 25 Fail 306
#03f Sample Fail1.38
Fail
Fail 19 Fail 357
#060 Sample Fail1.39
Fail
Fail 18 Fail 459
#063 Sample Fail1.37
Fail
Fail 12 Fail 408
#066 Sample Fail1.30
Fail
Fail 6 Fail 357
#069 Sample Fail1.20
Fail
Fail 1 Fail 306
#06c Sample Fail1.07
Fail
Fail 4 Fail 357
#06f Sample Fail1.08
Fail
Fail 10 Fail 408
#090 Sample Fail1.38
Fail
Fail 11 Pass 510
#093 Sample Fail1.39
Fail
Fail 17 Fail 459
#096 Sample Fail1.43
Fail
Fail 23 Fail 408
#099 Sample Fail1.49
Fail
Fail 28 Fail 357
#09c Sample Fail1.60
Fail
Fail 34 Fail 408
#09f Sample Fail1.74
Fail
Fail 40 Fail 459
#0c0 Sample Fail2.39
Fail
Fail 41 Pass 561
#0c3 Sample Fail2.40
Fail
Fail 47 Pass 510
#0c6 Sample Fail2.44
Fail
Fail 52 Fail 459
#0c9 Sample Fail2.51
Fail
Fail 58 Fail 408
#0cc Sample Fail2.61
Fail
Fail 64 Fail 459
#0cf Sample Fail2.75
Fail
Fail 70 Pass 510
#0f0 Sample Pass Level AA for large text3.80
Fail fo regular text
Fail 71 Pass 612
#0f3 Sample Pass Level AA for large text3.81
Fail fo regular text
Fail 77 Pass 561
#0f6 Sample Pass Level AA for large text3.85
Fail fo regular text
Fail 82 Pass 510
#0f9 Sample Pass Level AA for large text3.91
Fail fo regular text
Fail 88 Fail 459
#0fc Sample Pass Level AA for large text4.02
Fail fo regular text
Fail 94 Pass 510
#0ff Sample Pass Level AA for large text4.16
Fail fo regular text
Fail 100 Pass 561
#300 Sample Pass Level AA for large text3.53
Fail fo regular text
Fail 63 Fail 306
#303 Sample Pass Level AA for large text3.39
Fail fo regular text
Fail 57 Fail 255
#306 Sample Pass Level AA for large text3.02
Fail fo regular text
Fail 51 Fail 204
#309 Sample Fail2.52
Fail
Fail 45 Fail 153
#30c Sample Fail2.00
Fail
Fail 39 Fail 204
#30f Sample Fail1.56
Fail
Fail 34 Fail 255
#330 Sample Fail2.49
Fail
Fail 33 Fail 357
#333 Sample Fail2.42
Fail
Fail 27 Fail 306
#336 Sample Fail2.23
Fail
Fail 21 Fail 255
#339 Sample Fail1.94
Fail
Fail 15 Fail 204
#33c Sample Fail1.62
Fail
Fail 9 Fail 255
#33f Sample Fail1.32
Fail
Fail 4 Fail 306
#360 Sample Fail1.32
Fail
Fail 3 Fail 408
#363 Sample Fail1.30
Fail
Fail 2 Fail 357
#366 Sample Fail1.25
Fail
Fail 8 Fail 306
#369 Sample Fail1.15
Fail
Fail 14 Fail 255
#36c Sample Fail1.03
Fail
Fail 19 Fail 306
#36f Sample Fail1.11
Fail
Fail 25 Fail 357
#390 Sample Fail1.41
Fail
Fail 26 Fail 459
#393 Sample Fail1.43
Fail
Fail 32 Fail 408
#396 Sample Fail1.46
Fail
Fail 38 Fail 357
#399 Sample Fail1.53
Fail
Fail 44 Fail 306
#39c Sample Fail1.63
Fail
Fail 49 Fail 357
#39f Sample Fail1.77
Fail
Fail 55 Fail 408
#3c0 Sample Fail2.43
Fail
Fail 56 Pass 510
#3c3 Sample Fail2.44
Fail
Fail 62 Fail 459
#3c6 Sample Fail2.48
Fail
Fail 68 Fail 408
#3c9 Sample Fail2.54
Fail
Fail 74 Fail 357
#3cc Sample Fail2.64
Fail
Fail 79 Fail 408
#3cf Sample Fail2.79
Fail
Fail 85 Fail 459
#3f0 Sample Pass Level AA for large text3.83
Fail fo regular text
Fail 86 Pass 561
#3f3 Sample Pass Level AA for large text3.85
Fail fo regular text
Fail 92 Pass 510
#3f6 Sample Pass Level AA for large text3.88
Fail fo regular text
Fail 98 Fail 459
#3f9 Sample Pass Level AA for large text3.95
Fail fo regular text
Fail 103 Fail 408
#3fc Sample Pass Level AA for large text4.05
Fail fo regular text
Fail 109 Fail 459
#3ff Sample Pass Level AA for large text4.19
Fail fo regular text
Fail 115 Pass 510
#600 Sample Fail2.57
Fail
Fail 47 Fail 255
#603 Sample Fail2.50
Fail
Fail 42 Fail 204
#606 Sample Fail2.29
Fail
Fail 36 Fail 153
#609 Sample Fail1.99
Fail
Fail 30 Fail 102
#60c Sample Fail1.65
Fail
Fail 24 Fail 153
#60f Sample Fail1.34
Fail
Fail 18 Fail 204
#630 Sample Fail1.98
Fail
Fail 18 Fail 306
#633 Sample Fail1.93
Fail
Fail 12 Fail 255
#636 Sample Fail1.81
Fail
Fail 6 Fail 204
#639 Sample Fail1.61
Fail
Fail 0 Fail 153
#63c Sample Fail1.38
Fail
Fail 5 Fail 204
#63f Sample Fail1.16
Fail
Fail 11 Fail 255
#660 Sample Fail1.16
Fail
Fail 11 Fail 357
#663 Sample Fail1.15
Fail
Fail 17 Fail 306
#666 Sample Fail1.10
Fail
Fail 23 Fail 255
#669 Sample Fail1.03
Fail
Fail 29 Fail 204
#66c Sample Fail1.08
Fail
Fail 35 Fail 255
#66f Sample Fail1.22
Fail
Fail 41 Fail 306
#690 Sample Fail1.52
Fail
Fail 41 Fail 408
#693 Sample Fail1.53
Fail
Fail 47 Fail 357
#696 Sample Fail1.57
Fail
Fail 53 Fail 306
#699 Sample Fail1.63
Fail
Fail 59 Fail 255
#69c Sample Fail1.74
Fail
Fail 65 Fail 306
#69f Sample Fail1.88
Fail
Fail 70 Fail 357
#6c0 Sample Fail2.53
Fail
Fail 71 Fail 459
#6c3 Sample Fail2.55
Fail
Fail 77 Fail 408
#6c6 Sample Fail2.58
Fail
Fail 83 Fail 357
#6c9 Sample Fail2.65
Fail
Fail 89 Fail 306
#6cc Sample Fail2.75
Fail
Fail 95 Fail 357
#6cf Sample Fail2.89
Fail
Fail 100 Fail 408
#6f0 Sample Pass Level AA for large text3.94
Fail fo regular text
Fail 101 Pass 510
#6f3 Sample Pass Level AA for large text3.95
Fail fo regular text
Fail 107 Fail 459
#6f6 Sample Pass Level AA for large text3.99
Fail fo regular text
Fail 113 Fail 408
#6f9 Sample Pass Level AA for large text4.05
Fail fo regular text
Fail 119 Fail 357
#6fc Sample Pass Level AA for large text4.16
Fail fo regular text
Fail 125 Fail 408
#6ff Sample Pass Level AA for large text4.30
Fail fo regular text
Pass 130 Fail 459
#900 Sample Fail1.71
Fail
Fail 32 Fail 204
#903 Sample Fail1.68
Fail
Fail 26 Fail 153
#906 Sample Fail1.58
Fail
Fail 21 Fail 102
#909 Sample Fail1.43
Fail
Fail 15 Fail 51
#90c Sample Fail1.25
Fail
Fail 9 Fail 102
#90f Sample Fail1.06
Fail
Fail 3 Fail 153
#930 Sample Fail1.42
Fail
Fail 2 Fail 255
#933 Sample Fail1.40
Fail
Fail 3 Fail 204
#936 Sample Fail1.33
Fail
Fail 8 Fail 153
#939 Sample Fail1.22
Fail
Fail 14 Fail 102
#93c Sample Fail1.09
Fail
Fail 20 Fail 153
#93f Sample Fail1.06
Fail
Fail 26 Fail 204
#960 Sample Fail1.06
Fail
Fail 27 Fail 306
#963 Sample Fail1.07
Fail
Fail 32 Fail 255
#966 Sample Fail1.10
Fail
Fail 38 Fail 204
#969 Sample Fail1.17
Fail
Fail 44 Fail 153
#96c Sample Fail1.27
Fail
Fail 50 Fail 204
#96f Sample Fail1.42
Fail
Fail 56 Fail 255
#990 Sample Fail1.72
Fail
Fail 57 Fail 357
#993 Sample Fail1.73
Fail
Fail 62 Fail 306
#996 Sample Fail1.76
Fail
Fail 68 Fail 255
#999 Sample Fail1.83
Fail
Fail 74 Fail 204
#99c Sample Fail1.93
Fail
Fail 80 Fail 255
#99f Sample Fail2.07
Fail
Fail 86 Fail 306
#9c0 Sample Fail2.73
Fail
Fail 87 Fail 408
#9c3 Sample Fail2.74
Fail
Fail 92 Fail 357
#9c6 Sample Fail2.78
Fail
Fail 98 Fail 306
#9c9 Sample Fail2.84
Fail
Fail 104 Fail 255
#9cc Sample Fail2.95
Fail
Fail 110 Fail 306
#9cf Sample Pass Level AA for large text3.09
Fail fo regular text
Fail 116 Fail 357
#9f0 Sample Pass Level AA for large text4.14
Fail fo regular text
Fail 116 Fail 459
#9f3 Sample Pass Level AA for large text4.15
Fail fo regular text
Fail 122 Fail 408
#9f6 Sample Pass Level AA for large text4.18
Fail fo regular text
Pass 128 Fail 357
#9f9 Sample Pass Level AA for large text4.25
Fail fo regular text
Pass 134 Fail 306
#9fc Sample Pass Level AA for large text4.35
Fail fo regular text
Pass 140 Fail 357
#9ff Sample Pass Level AA for large text4.49
Fail fo regular text
Pass 146 Fail 408
#c00 Sample Fail1.13
Fail
Fail 17 Fail 153
#c03 Sample Fail1.11
Fail
Fail 11 Fail 102
#c06 Sample Fail1.07
Fail
Fail 5 Fail 51
#c09 Sample Fail1.00
Fail
Fail 0 Fail 0
#c0c Sample Fail1.10
Fail
Fail 5 Fail 51
#c0f Sample Fail1.24
Fail
Fail 11 Fail 102
#c30 Sample Fail1.00
Fail
Fail 12 Fail 204
#c33 Sample Fail1.02
Fail
Fail 18 Fail 153
#c36 Sample Fail1.05
Fail
Fail 24 Fail 102
#c39 Sample Fail1.12
Fail
Fail 29 Fail 51
#c3c Sample Fail1.22
Fail
Fail 35 Fail 102
#c3f Sample Fail1.36
Fail
Fail 41 Fail 153
#c60 Sample Fail1.36
Fail
Fail 42 Fail 255
#c63 Sample Fail1.37
Fail
Fail 48 Fail 204
#c66 Sample Fail1.41
Fail
Fail 54 Fail 153
#c69 Sample Fail1.47
Fail
Fail 59 Fail 102
#c6c Sample Fail1.57
Fail
Fail 65 Fail 153
#c6f Sample Fail1.72
Fail
Fail 71 Fail 204
#c90 Sample Fail2.02
Fail
Fail 72 Fail 306
#c93 Sample Fail2.03
Fail
Fail 78 Fail 255
#c96 Sample Fail2.06
Fail
Fail 83 Fail 204
#c99 Sample Fail2.13
Fail
Fail 89 Fail 153
#c9c Sample Fail2.23
Fail
Fail 95 Fail 204
#c9f Sample Fail2.38
Fail
Fail 101 Fail 255
#cc0 Sample Pass Level AA for large text3.03
Fail fo regular text
Fail 102 Fail 357
#cc3 Sample Pass Level AA for large text3.04
Fail fo regular text
Fail 108 Fail 306
#cc6 Sample Pass Level AA for large text3.08
Fail fo regular text
Fail 113 Fail 255
#cc9 Sample Pass Level AA for large text3.14
Fail fo regular text
Fail 119 Fail 204
#ccc Sample Pass Level AA for large text3.25
Fail fo regular text
Fail 125 Fail 255
#ccf Sample Pass Level AA for large text3.39
Fail fo regular text
Pass 131 Fail 306
#cf0 Sample Pass Level AA for large text4.44
Fail fo regular text
Pass 132 Fail 408
#cf3 Sample Pass Level AA for large text4.45
Fail fo regular text
Pass 138 Fail 357
#cf6 Sample Pass Level AA for large text4.49
Fail fo regular text
Pass 143 Fail 306
#cf9 Sample Pass Level AAA for large text4.55
Pass level 2 fo regular text
Pass 149 Fail 255
#cfc Sample Pass Level AAA for large text4.65
Pass level 2 fo regular text
Pass 155 Fail 306
#cff Sample Pass Level AAA for large text4.80
Pass level 2 fo regular text
Pass 161 Fail 357
#f00 Sample Fail1.30
Fail
Fail 2 Fail 204
#f03 Sample Fail1.32
Fail
Fail 3 Fail 153
#f06 Sample Fail1.35
Fail
Fail 9 Fail 102
#f09 Sample Fail1.42
Fail
Fail 15 Fail 51
#f0c Sample Fail1.52
Fail
Fail 21 Fail 102
#f0f Sample Fail1.66
Fail
Fail 26 Fail 153
#f30 Sample Fail1.42
Fail
Fail 27 Fail 255
#f33 Sample Fail1.43
Fail
Fail 33 Fail 204
#f36 Sample Fail1.47
Fail
Fail 39 Fail 153
#f39 Sample Fail1.54
Fail
Fail 45 Fail 102
#f3c Sample Fail1.64
Fail
Fail 50 Fail 153
#f3f Sample Fail1.78
Fail
Fail 56 Fail 204
#f60 Sample Fail1.78
Fail
Fail 57 Fail 306
#f63 Sample Fail1.79
Fail
Fail 63 Fail 255
#f66 Sample Fail1.82
Fail
Fail 69 Fail 204
#f69 Sample Fail1.89
Fail
Fail 75 Fail 153
#f6c Sample Fail1.99
Fail
Fail 80 Fail 204
#f6f Sample Fail2.13
Fail
Fail 86 Fail 255
#f90 Sample Fail2.44
Fail
Fail 87 Fail 357
#f93 Sample Fail2.45
Fail
Fail 93 Fail 306
#f96 Sample Fail2.48
Fail
Fail 99 Fail 255
#f99 Sample Fail2.55
Fail
Fail 105 Fail 204
#f9c Sample Fail2.65
Fail
Fail 110 Fail 255
#f9f Sample Fail2.79
Fail
Fail 116 Fail 306
#fc0 Sample Pass Level AA for large text3.45
Fail fo regular text
Fail 117 Fail 408
#fc3 Sample Pass Level AA for large text3.46
Fail fo regular text
Fail 123 Fail 357
#fc6 Sample Pass Level AA for large text3.50
Fail fo regular text
Pass 129 Fail 306
#fc9 Sample Pass Level AA for large text3.56
Fail fo regular text
Pass 134 Fail 255
#fcc Sample Pass Level AA for large text3.67
Fail fo regular text
Pass 140 Fail 306
#fcf Sample Pass Level AA for large text3.81
Fail fo regular text
Pass 146 Fail 357
#ff0 Sample Pass Level AAA for large text4.86
Pass level 2 fo regular text
Pass 147 Fail 459
#ff3 Sample Pass Level AAA for large text4.87
Pass level 2 fo regular text
Pass 153 Fail 408
#ff6 Sample Pass Level AAA for large text4.90
Pass level 2 fo regular text
Pass 159 Fail 357
#ff9 Sample Pass Level AAA for large text4.97
Pass level 2 fo regular text
Pass 164 Fail 306
#ffc Sample Pass Level AAA for large text5.07
Pass level 2 fo regular text
Pass 170 Fail 357
#fff Sample Pass Level AAA for large text5.21
Pass level 2 fo regular text
Pass 176 Fail 408

Other Background Colour Combinations

Examine luminosity contrast ratios with other web safe backround colours.