#57181A#57181A

#57181A is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.3% C 0.093 H 22.5°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#57181A
RGB	rgb(87, 24, 26)
HSL	hsl(358, 57%, 22%)
HSV	hsv(358, 72%, 34%)
CMYK	cmyk(0%, 72.4%, 70.1%, 65.9%)
CIE-LAB	lab(19.03, 29.12, 14.99)
CIE-LCH	lch(19.03, 32.75, 27.23°)
OKLab	oklab(31.33% 0.0858 0.0356)
OKLCH	oklch(31.33% 0.093 22.5)
XYZ	xyz(4.4440, 2.7547, 1.2748)
Luminance	0.0275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57181A #185755

analogous

#57183A #57181A #573618

triadic

#57181A #1A5718 #181A57

tetradic

#57181A #3A5718 #185755 #361857

square

#57181A #3A5718 #185755 #361857

split-complementary

#57181A #185736 #183A57

monochromatic

#180707 #270B0C #57181A #872528 #B73237

Accessibility & contrast

On white

13.54

#57181A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#57181A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57181A

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57181A	#FFFFFF	#000000	##FFFFFF
##57181A	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29261A

Deuteranopia (green-blind)

#393318

Tritanopia (blue-blind)

#600819

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #57181a;
/* rgb */ color: rgb(87, 24, 26);
/* oklch */ color: oklch(31.3% 0.093 22.5);

Tailwind

colors: {
  custom: {
    50: '#8c5956',
    500: '#57181a',
    950: '#000000',
  },
}

SCSS

$custom: #57181a;
$custom-light: #8c5956;
$custom-dark: #000000;

JSON

{
  "hex": "#57181a",
  "rgb": {
    "r": 87,
    "g": 24,
    "b": 26
  },
  "hsl": {
    "h": 358.095,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.31326,
    "c": 0.0929,
    "h": 22.5
  },
  "luminance": 0.02754
}

Semantic roles & 50–950 ramp

primary

#57181A

secondary

#3D8E8B

accent

#E0DB48

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #57181A

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

Preview Lab → · Contrast checker → · Palette generator →