#57181D#57181D

#57181D is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.4% C 0.093 H 19.8°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#57181D
RGB	rgb(87, 24, 29)
HSL	hsl(355, 57%, 22%)
HSV	hsv(355, 72%, 34%)
CMYK	cmyk(0%, 72.4%, 66.7%, 65.9%)
CIE-LAB	lab(19.09, 29.34, 12.98)
CIE-LCH	lch(19.09, 32.08, 23.87°)
OKLab	oklab(31.39% 0.0872 0.0314)
OKLCH	oklch(31.39% 0.093 19.8)
XYZ	xyz(4.4793, 2.7688, 1.4607)
Luminance	0.0277 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57181D #185752

analogous

#57183D #57181D #573318

triadic

#57181D #1D5718 #181D57

tetradic

#57181D #3D5718 #185752 #331857

square

#57181D #3D5718 #185752 #331857

split-complementary

#57181D #185733 #183D57

monochromatic

#180708 #270B0D #57181D #87252D #B7323D

Accessibility & contrast

On white

13.52

#57181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#57181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57181D

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57181D	#FFFFFF	#000000	##FFFFFF
##57181D	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28261D

Deuteranopia (green-blind)

#38331B

Tritanopia (blue-blind)

#60091A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #57181d;
/* rgb */ color: rgb(87, 24, 29);
/* oklch */ color: oklch(31.4% 0.093 19.8);

Tailwind

colors: {
  custom: {
    50: '#8b5958',
    500: '#57181d',
    950: '#000000',
  },
}

SCSS

$custom: #57181d;
$custom-light: #8b5958;
$custom-dark: #000000;

JSON

{
  "hex": "#57181d",
  "rgb": {
    "r": 87,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 355.238,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.3139,
    "c": 0.09264,
    "h": 19.8
  },
  "luminance": 0.02768
}

Semantic roles & 50–950 ramp

primary

#57181D

secondary

#3D8E87

accent

#E0D448

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #57181D

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

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