Accessibility (WCAG 2.1)
Aa
On Black
8.76:1
AAA Pass
Aa
White on Color
2.40:1
Fail
Aa
Black on Color
8.76:1
AAA Pass
Relative Luminance
0.3881
Mid-tone
Relative luminance defines the perceived brightness of a color.
Values range from 0 (pure black) to 1 (pure white).
This metric is essential for calculating WCAG contrast ratios.
Color Relationships & Derivatives
Dark Slate Gray
13.8%
Gray
Accessibility (WCAG 2.1)
Aa
On White
9.44:1
AAA Pass
Aa
White on Color
9.44:1
AAA Pass
Aa
Black on Color
2.22:1
Fail
Relative Luminance
0.0612
Dark
Relative luminance defines the perceived brightness of a color.
Values range from 0 (pure black) to 1 (pure white).
This metric is essential for calculating WCAG contrast ratios.
Color Relationships & Derivatives
Dark Slate Gray
13.8%
Gray
Accessibility (WCAG 2.1)
Aa
On White
14.12:1
AAA Pass
Aa
White on Color
14.12:1
AAA Pass
Aa
Black on Color
1.49:1
Fail
Relative Luminance
0.0244
Very Dark
Relative luminance defines the perceived brightness of a color.
Values range from 0 (pure black) to 1 (pure white).
This metric is essential for calculating WCAG contrast ratios.
Color Relationships & Derivatives
Accessibility (WCAG 2.1)
Aa
On White
6.84:1
AA Pass
Aa
On Black
3.07:1
Large Only
Aa
White on Color
6.84:1
AA Pass
Aa
Black on Color
3.07:1
Large Only
Relative Luminance
0.1034
Dark
Relative luminance defines the perceived brightness of a color.
Values range from 0 (pure black) to 1 (pure white).
This metric is essential for calculating WCAG contrast ratios.
Color Relationships & Derivatives
Accessibility (WCAG 2.1)
Aa
On White
18.10:1
AAA Pass
Aa
White on Color
18.10:1
AAA Pass
Aa
Black on Color
1.16:1
Fail
Relative Luminance
0.0080
Very Dark
Relative luminance defines the perceived brightness of a color.
Values range from 0 (pure black) to 1 (pure white).
This metric is essential for calculating WCAG contrast ratios.
Color Relationships & Derivatives
Accessibility (WCAG 2.1)
Aa
On Black
10.51:1
AAA Pass
Aa
White on Color
2.00:1
Fail
Aa
Black on Color
10.51:1
AAA Pass
Relative Luminance
0.4757
Mid-tone
Relative luminance defines the perceived brightness of a color.
Values range from 0 (pure black) to 1 (pure white).
This metric is essential for calculating WCAG contrast ratios.
Color Relationships & Derivatives
Accessibility (WCAG 2.1)
Aa
On White
4.06:1
Large Only
Aa
On Black
5.17:1
AA Pass
Aa
White on Color
4.06:1
Large Only
Aa
Black on Color
5.17:1
AA Pass
Relative Luminance
0.2084
Mid-tone
Relative luminance defines the perceived brightness of a color.
Values range from 0 (pure black) to 1 (pure white).
This metric is essential for calculating WCAG contrast ratios.
Color Relationships & Derivatives
Accessibility (WCAG 2.1)
Aa
On White
4.97:1
AA Pass
Aa
On Black
4.22:1
Large Only
Aa
White on Color
4.97:1
AA Pass
Aa
Black on Color
4.22:1
Large Only
Relative Luminance
0.1611
Dark
Relative luminance defines the perceived brightness of a color.
Values range from 0 (pure black) to 1 (pure white).
This metric is essential for calculating WCAG contrast ratios.
Color Relationships & Derivatives