#57151B#57151B

#57151B is a dark, moderate red. Relative luminance 0.026; OKLCH L 31.0% C 0.096 H 19.9°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#57151B
RGB	rgb(87, 21, 27)
HSL	hsl(355, 61%, 21%)
HSV	hsv(355, 76%, 34%)
CMYK	cmyk(0%, 75.9%, 69%, 65.9%)
CIE-LAB	lab(18.55, 30.57, 13.68)
CIE-LCH	lch(18.55, 33.49, 24.11°)
OKLab	oklab(30.97% 0.0906 0.0328)
OKLCH	oklch(30.97% 0.096 19.9)
XYZ	xyz(4.3969, 2.6423, 1.3152)
Luminance	0.0264 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57151B #155751

analogous

#57153C #57151B #573015

triadic

#57151B #1B5715 #151B57

tetradic

#57151B #3C5715 #155751 #301557

square

#57151B #3C5715 #155751 #301557

split-complementary

#57151B #155730 #153C57

monochromatic

#190608 #26090C #57151B #88212A #BA2D3A

Accessibility & contrast

On white

13.74

#57151B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#57151B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57151B

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57151B	#FFFFFF	#000000	##FFFFFF
##57151B	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27241B

Deuteranopia (green-blind)

#383219

Tritanopia (blue-blind)

#600418

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #57151b;
/* rgb */ color: rgb(87, 21, 27);
/* oklch */ color: oklch(31.0% 0.096 19.9);

Tailwind

colors: {
  custom: {
    50: '#8c5857',
    500: '#57151b',
    950: '#000000',
  },
}

SCSS

$custom: #57151b;
$custom-light: #8c5857;
$custom-dark: #000000;

JSON

{
  "hex": "#57151b",
  "rgb": {
    "r": 87,
    "g": 21,
    "b": 27
  },
  "hsl": {
    "h": 354.545,
    "s": 61.111,
    "l": 21.176
  },
  "oklch": {
    "l": 0.30971,
    "c": 0.09636,
    "h": 19.9
  },
  "luminance": 0.02642
}

Semantic roles & 50–950 ramp

primary

#57151B

secondary

#398F87

accent

#E4D644

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #57151B

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

Preview Lab → · Contrast checker → · Palette generator →