#57180C#57180C

#57180C is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.1% C 0.095 H 32.9°. Best body text is #FFFFFF at 13.63:1 contrast (WCAG AA passes).

Color values

HEX	#57180C
RGB	rgb(87, 24, 12)
HSL	hsl(10, 76%, 19%)
HSV	hsv(10, 86%, 34%)
CMYK	cmyk(0%, 72.4%, 86.2%, 65.9%)
CIE-LAB	lab(18.83, 28.37, 23.27)
CIE-LCH	lch(18.83, 36.69, 39.37°)
OKLab	oklab(31.11% 0.0802 0.0518)
OKLCH	oklch(31.11% 0.095 32.9)
XYZ	xyz(4.3240, 2.7067, 0.6425)
Luminance	0.0271 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57180C #0C4B57

analogous

#570C26 #57180C #573E0C

triadic

#57180C #0C5718 #180C57

tetradic

#57180C #26570C #0C4B57 #3E0C57

square

#57180C #26570C #0C4B57 #3E0C57

split-complementary

#57180C #0C573E #0C2657

monochromatic

#1B0704 #210905 #57180C #8D2713 #C3361B

Accessibility & contrast

On white

13.63

#57180C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#57180C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57180C

13.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57180C	#FFFFFF	#000000	##FFFFFF
##57180C	1.00	13.63	1.54	13.63
#FFFFFF	13.63	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A250A

Deuteranopia (green-blind)

#3A3309

Tritanopia (blue-blind)

#610516

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #57180c;
/* rgb */ color: rgb(87, 24, 12);
/* oklch */ color: oklch(31.1% 0.095 32.9);

Tailwind

colors: {
  custom: {
    50: '#8d594c',
    500: '#57180c',
    950: '#000000',
  },
}

SCSS

$custom: #57180c;
$custom-light: #8d594c;
$custom-dark: #000000;

JSON

{
  "hex": "#57180c",
  "rgb": {
    "r": 87,
    "g": 24,
    "b": 12
  },
  "hsl": {
    "h": 9.6,
    "s": 75.758,
    "l": 19.412
  },
  "oklch": {
    "l": 0.31106,
    "c": 0.09549,
    "h": 32.9
  },
  "luminance": 0.02706
}

Semantic roles & 50–950 ramp

primary

#57180C

secondary

#2D8292

accent

#D4F235

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #57180C

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

Preview Lab → · Contrast checker → · Palette generator →