#55180F#55180F

#55180F is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.8% C 0.092 H 31.2°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#55180F
RGB	rgb(85, 24, 15)
HSL	hsl(8, 70%, 20%)
HSV	hsv(8, 82%, 33%)
CMYK	cmyk(0%, 71.8%, 82.4%, 66.7%)
CIE-LAB	lab(18.45, 27.70, 21.25)
CIE-LCH	lch(18.45, 34.91, 37.49°)
OKLab	oklab(30.76% 0.0791 0.0478)
OKLCH	oklch(30.76% 0.092 31.2)
XYZ	xyz(4.1596, 2.6197, 0.7385)
Luminance	0.0262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55180F #0F4C55

analogous

#550F29 #55180F #553B0F

triadic

#55180F #0F5518 #180F55

tetradic

#55180F #29550F #0F4C55 #3B0F55

square

#55180F #29550F #0F4C55 #3B0F55

split-complementary

#55180F #0F553B #0F2955

monochromatic

#1A0705 #210906 #55180F #892718 #BD3521

Accessibility & contrast

On white

13.78

#55180F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#55180F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55180F

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55180F	#FFFFFF	#000000	##FFFFFF
##55180F	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29240E

Deuteranopia (green-blind)

#38320D

Tritanopia (blue-blind)

#5E0716

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #55180f;
/* rgb */ color: rgb(85, 24, 15);
/* oklch */ color: oklch(30.8% 0.092 31.2);

Tailwind

colors: {
  custom: {
    50: '#8b594e',
    500: '#55180f',
    950: '#000000',
  },
}

SCSS

$custom: #55180f;
$custom-light: #8b594e;
$custom-dark: #000000;

JSON

{
  "hex": "#55180f",
  "rgb": {
    "r": 85,
    "g": 24,
    "b": 15
  },
  "hsl": {
    "h": 7.714,
    "s": 70,
    "l": 19.608
  },
  "oklch": {
    "l": 0.30757,
    "c": 0.0924,
    "h": 31.2
  },
  "luminance": 0.02619
}

Semantic roles & 50–950 ramp

primary

#55180F

secondary

#31838F

accent

#D6ED3B

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0301

muted

#7E7877

Preview Lab

Preview with #55180F

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

Preview Lab → · Contrast checker → · Palette generator →