#51121B#51121B

#51121B is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.4% C 0.093 H 17.0°. Best body text is #FFFFFF at 14.46:1 contrast (WCAG AA passes).

Color values

HEX	#51121B
RGB	rgb(81, 18, 27)
HSL	hsl(351, 64%, 19%)
HSV	hsv(351, 78%, 32%)
CMYK	cmyk(0%, 77.8%, 66.7%, 68.2%)
CIE-LAB	lab(16.80, 29.69, 11.17)
CIE-LCH	lch(16.80, 31.72, 20.62°)
OKLab	oklab(29.44% 0.0887 0.0272)
OKLCH	oklch(29.44% 0.093 17)
XYZ	xyz(3.8079, 2.2616, 1.2727)
Luminance	0.0226 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51121B #125148

analogous

#51123B #51121B #512912

triadic

#51121B #1B5112 #121B51

tetradic

#51121B #3B5112 #125148 #291251

square

#51121B #3B5112 #125148 #291251

split-complementary

#51121B #125129 #123B51

monochromatic

#190608 #1F070A #51121B #831D2C #B5283C

Accessibility & contrast

On white

14.46

#51121B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#51121B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51121B

14.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51121B	#FFFFFF	#000000	##FFFFFF
##51121B	1.00	14.46	1.45	14.46
#FFFFFF	14.46	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23211B

Deuteranopia (green-blind)

#332E19

Tritanopia (blue-blind)

#590316

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #51121b;
/* rgb */ color: rgb(81, 18, 27);
/* oklch */ color: oklch(29.4% 0.093 17.0);

Tailwind

colors: {
  custom: {
    50: '#875557',
    500: '#51121b',
    950: '#000000',
  },
}

SCSS

$custom: #51121b;
$custom-light: #875557;
$custom-dark: #000000;

JSON

{
  "hex": "#51121b",
  "rgb": {
    "r": 81,
    "g": 18,
    "b": 27
  },
  "hsl": {
    "h": 351.429,
    "s": 63.636,
    "l": 19.412
  },
  "oklch": {
    "l": 0.29437,
    "c": 0.09276,
    "h": 17
  },
  "luminance": 0.02261
}

Semantic roles & 50–950 ramp

primary

#51121B

secondary

#358A7E

accent

#E7CF41

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51121B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →