#51161B#51161B

#51161B is a dark, moderate red. Relative luminance 0.024; OKLCH L 29.9% C 0.088 H 19.4°. Best body text is #FFFFFF at 14.19:1 contrast (WCAG AA passes).

Color values

HEX	#51161B
RGB	rgb(81, 22, 27)
HSL	hsl(355, 57%, 20%)
HSV	hsv(355, 73%, 32%)
CMYK	cmyk(0%, 72.8%, 66.7%, 68.2%)
CIE-LAB	lab(17.47, 27.86, 12.04)
CIE-LCH	lch(17.47, 30.35, 23.38°)
OKLab	oklab(29.94% 0.0828 0.0292)
OKLCH	oklch(29.94% 0.088 19.4)
XYZ	xyz(3.8785, 2.4028, 1.2963)
Luminance	0.0240 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51161B #16514C

analogous

#511639 #51161B #512E16

triadic

#51161B #1B5116 #161B51

tetradic

#51161B #395116 #16514C #2E1651

square

#51161B #395116 #16514C #2E1651

split-complementary

#51161B #16512E #163951

monochromatic

#180708 #21090B #51161B #81232B #B1303B

Accessibility & contrast

On white

14.19

#51161B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#51161B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51161B

14.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51161B	#FFFFFF	#000000	##FFFFFF
##51161B	1.00	14.19	1.48	14.19
#FFFFFF	14.19	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231B

Deuteranopia (green-blind)

#342F19

Tritanopia (blue-blind)

#590918

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #51161b;
/* rgb */ color: rgb(81, 22, 27);
/* oklch */ color: oklch(29.9% 0.088 19.4);

Tailwind

colors: {
  custom: {
    50: '#875757',
    500: '#51161b',
    950: '#000000',
  },
}

SCSS

$custom: #51161b;
$custom-light: #875757;
$custom-dark: #000000;

JSON

{
  "hex": "#51161b",
  "rgb": {
    "r": 81,
    "g": 22,
    "b": 27
  },
  "hsl": {
    "h": 354.915,
    "s": 57.282,
    "l": 20.196
  },
  "oklch": {
    "l": 0.29936,
    "c": 0.08785,
    "h": 19.4
  },
  "luminance": 0.02402
}

Semantic roles & 50–950 ramp

primary

#51161B

secondary

#3A8882

accent

#E1D447

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51161B

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

Preview Lab → · Contrast checker → · Palette generator →