#57281B#57281B

#57281B is a dark, moderate red. Relative luminance 0.036; OKLCH L 33.9% C 0.073 H 36.4°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#57281B
RGB	rgb(87, 40, 27)
HSL	hsl(13, 53%, 22%)
HSV	hsv(13, 69%, 34%)
CMYK	cmyk(0%, 54%, 69%, 65.9%)
CIE-LAB	lab(22.39, 20.48, 18.47)
CIE-LCH	lch(22.39, 27.57, 42.04°)
OKLab	oklab(33.86% 0.059 0.0435)
OKLCH	oklch(33.86% 0.073 36.4)
XYZ	xyz(4.8875, 3.6235, 1.4787)
Luminance	0.0362 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57281B #1B4A57

analogous

#571B2C #57281B #57461B

triadic

#57281B #1B5728 #281B57

tetradic

#57281B #2C571B #1B4A57 #461B57

square

#57281B #2C571B #1B4A57 #461B57

split-complementary

#57281B #1B5746 #1B2C57

monochromatic

#170B07 #28130D #57281B #863D29 #B45338

Accessibility & contrast

On white

12.18

#57281B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#57281B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57281B

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57281B	#FFFFFF	#000000	##FFFFFF
##57281B	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342F1A

Deuteranopia (green-blind)

#40391A

Tritanopia (blue-blind)

#601F25

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #57281b;
/* rgb */ color: rgb(87, 40, 27);
/* oklch */ color: oklch(33.9% 0.073 36.4);

Tailwind

colors: {
  custom: {
    50: '#8a6357',
    500: '#57281b',
    950: '#000000',
  },
}

SCSS

$custom: #57281b;
$custom-light: #8a6357;
$custom-dark: #000000;

JSON

{
  "hex": "#57281b",
  "rgb": {
    "r": 87,
    "g": 40,
    "b": 27
  },
  "hsl": {
    "h": 13,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.33864,
    "c": 0.0733,
    "h": 36.4
  },
  "luminance": 0.03623
}

Semantic roles & 50–950 ramp

primary

#57281B

secondary

#417C8D

accent

#BDDC4C

background

#F8F5F5

surface

#F0EAE9

border

#CBC6C5

text

#0C0503

muted

#7D7978

Preview Lab

Preview with #57281B

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

Preview Lab → · Contrast checker → · Palette generator →