#55180C#55180C

#55180C is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.7% C 0.093 H 33.1°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#55180C
RGB	rgb(85, 24, 12)
HSL	hsl(10, 75%, 19%)
HSV	hsv(10, 86%, 33%)
CMYK	cmyk(0%, 71.8%, 85.9%, 66.7%)
CIE-LAB	lab(18.42, 27.57, 22.69)
CIE-LCH	lch(18.42, 35.71, 39.44°)
OKLab	oklab(30.72% 0.078 0.0508)
OKLCH	oklch(30.72% 0.093 33.1)
XYZ	xyz(4.1398, 2.6117, 0.6339)
Luminance	0.0261 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55180C #0C4955

analogous

#550C25 #55180C #553D0C

triadic

#55180C #0C5518 #180C55

tetradic

#55180C #25550C #0C4955 #3D0C55

square

#55180C #25550C #0C4955 #3D0C55

split-complementary

#55180C #0C553D #0C2555

monochromatic

#1B0804 #1F0904 #55180C #8B2714 #C0361B

Accessibility & contrast

On white

13.80

#55180C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#55180C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55180C

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55180C	#FFFFFF	#000000	##FFFFFF
##55180C	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A240A

Deuteranopia (green-blind)

#393209

Tritanopia (blue-blind)

#5E0616

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #55180c;
/* rgb */ color: rgb(85, 24, 12);
/* oklch */ color: oklch(30.7% 0.093 33.1);

Tailwind

colors: {
  custom: {
    50: '#8b594c',
    500: '#55180c',
    950: '#000000',
  },
}

SCSS

$custom: #55180c;
$custom-light: #8b594c;
$custom-dark: #000000;

JSON

{
  "hex": "#55180c",
  "rgb": {
    "r": 85,
    "g": 24,
    "b": 12
  },
  "hsl": {
    "h": 9.863,
    "s": 75.258,
    "l": 19.02
  },
  "oklch": {
    "l": 0.3072,
    "c": 0.09308,
    "h": 33.1
  },
  "luminance": 0.02611
}

Semantic roles & 50–950 ramp

primary

#55180C

secondary

#2D8090

accent

#D3F236

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0301

muted

#7E7877

Preview Lab

Preview with #55180C

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

Preview Lab → · Contrast checker → · Palette generator →