#55180D#55180D

#55180D is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.7% C 0.093 H 32.5°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#55180D
RGB	rgb(85, 24, 13)
HSL	hsl(9, 73%, 19%)
HSV	hsv(9, 85%, 33%)
CMYK	cmyk(0%, 71.8%, 84.7%, 66.7%)
CIE-LAB	lab(18.43, 27.62, 22.23)
CIE-LCH	lch(18.43, 35.45, 38.83°)
OKLab	oklab(30.73% 0.0783 0.0499)
OKLCH	oklch(30.73% 0.093 32.5)
XYZ	xyz(4.1461, 2.6142, 0.6670)
Luminance	0.0261 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55180D #0D4A55

analogous

#550D26 #55180D #553C0D

triadic

#55180D #0D5518 #180D55

tetradic

#55180D #26550D #0D4A55 #3C0D55

square

#55180D #26550D #0D4A55 #3C0D55

split-complementary

#55180D #0D553C #0D2655

monochromatic

#1B0704 #200905 #55180D #8A2715 #BF361D

Accessibility & contrast

On white

13.79

#55180D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#55180D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55180D

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55180D	#FFFFFF	#000000	##FFFFFF
##55180D	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29240B

Deuteranopia (green-blind)

#39320B

Tritanopia (blue-blind)

#5E0716

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #55180d;
/* rgb */ color: rgb(85, 24, 13);
/* oklch */ color: oklch(30.7% 0.093 32.5);

Tailwind

colors: {
  custom: {
    50: '#8b594d',
    500: '#55180d',
    950: '#000000',
  },
}

SCSS

$custom: #55180d;
$custom-light: #8b594d;
$custom-dark: #000000;

JSON

{
  "hex": "#55180d",
  "rgb": {
    "r": 85,
    "g": 24,
    "b": 13
  },
  "hsl": {
    "h": 9.167,
    "s": 73.469,
    "l": 19.216
  },
  "oklch": {
    "l": 0.30732,
    "c": 0.09284,
    "h": 32.5
  },
  "luminance": 0.02614
}

Semantic roles & 50–950 ramp

primary

#55180D

secondary

#2E8190

accent

#D4F038

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0301

muted

#7E7877

Preview Lab

Preview with #55180D

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

Preview Lab → · Contrast checker → · Palette generator →