#57131B#57131B

#57131B is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.7% C 0.099 H 18.8°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#57131B
RGB	rgb(87, 19, 27)
HSL	hsl(353, 64%, 21%)
HSV	hsv(353, 78%, 34%)
CMYK	cmyk(0%, 78.2%, 69%, 65.9%)
CIE-LAB	lab(18.24, 31.42, 13.28)
CIE-LCH	lch(18.24, 34.11, 22.91°)
OKLab	oklab(30.74% 0.0934 0.0319)
OKLCH	oklch(30.74% 0.099 18.8)
XYZ	xyz(4.3616, 2.5717, 1.3034)
Luminance	0.0257 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57131B #13574F

analogous

#57133D #57131B #572D13

triadic

#57131B #1B5713 #131B57

tetradic

#57131B #3D5713 #13574F #2D1357

square

#57131B #3D5713 #13574F #2D1357

split-complementary

#57131B #13572D #133D57

monochromatic

#190508 #25080B #57131B #891E2B #BB293A

Accessibility & contrast

On white

13.87

#57131B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#57131B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57131B

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57131B	#FFFFFF	#000000	##FFFFFF
##57131B	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26231B

Deuteranopia (green-blind)

#373219

Tritanopia (blue-blind)

#600116

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #57131b;
/* rgb */ color: rgb(87, 19, 27);
/* oklch */ color: oklch(30.7% 0.099 18.8);

Tailwind

colors: {
  custom: {
    50: '#8c5757',
    500: '#57131b',
    950: '#000000',
  },
}

SCSS

$custom: #57131b;
$custom-light: #8c5757;
$custom-dark: #000000;

JSON

{
  "hex": "#57131b",
  "rgb": {
    "r": 87,
    "g": 19,
    "b": 27
  },
  "hsl": {
    "h": 352.941,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.3074,
    "c": 0.09863,
    "h": 18.8
  },
  "luminance": 0.02571
}

Semantic roles & 50–950 ramp

primary

#57131B

secondary

#368F85

accent

#E7D441

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #57131B

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

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