#550D1D#550D1D

#550D1D is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.8% C 0.103 H 14.1°. Best body text is #FFFFFF at 14.37:1 contrast (WCAG AA passes).

Color values

HEX	#550D1D
RGB	rgb(85, 13, 29)
HSL	hsl(347, 73%, 19%)
HSV	hsv(347, 85%, 33%)
CMYK	cmyk(0%, 84.7%, 65.9%, 66.7%)
CIE-LAB	lab(17.03, 33.16, 10.19)
CIE-LCH	lch(17.03, 34.69, 17.08°)
OKLab	oklab(29.78% 0.0997 0.025)
OKLCH	oklch(29.78% 0.103 14.1)
XYZ	xyz(4.1124, 2.3085, 1.3912)
Luminance	0.0231 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#550D1D #0D5545

analogous

#550D41 #550D1D #55210D

triadic

#550D1D #1D550D #0D1D55

tetradic

#550D1D #41550D #0D5545 #210D55

square

#550D1D #41550D #0D5545 #210D55

split-complementary

#550D1D #0D5521 #0D4155

monochromatic

#1B0409 #20050B #550D1D #8A152F #BF1D41

Accessibility & contrast

On white

14.37

#550D1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#550D1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #550D1D

14.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##550D1D	#FFFFFF	#000000	##FFFFFF
##550D1D	1.00	14.37	1.46	14.37
#FFFFFF	14.37	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21201D

Deuteranopia (green-blind)

#342F1B

Tritanopia (blue-blind)

#5E0014

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #550d1d;
/* rgb */ color: rgb(85, 13, 29);
/* oklch */ color: oklch(29.8% 0.103 14.1);

Tailwind

colors: {
  custom: {
    50: '#8a5458',
    500: '#550d1d',
    950: '#000000',
  },
}

SCSS

$custom: #550d1d;
$custom-light: #8a5458;
$custom-dark: #000000;

JSON

{
  "hex": "#550d1d",
  "rgb": {
    "r": 85,
    "g": 13,
    "b": 29
  },
  "hsl": {
    "h": 346.667,
    "s": 73.469,
    "l": 19.216
  },
  "oklch": {
    "l": 0.29777,
    "c": 0.10277,
    "h": 14.1
  },
  "luminance": 0.02308
}

Semantic roles & 50–950 ramp

primary

#550D1D

secondary

#2E907A

accent

#F0C738

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0D0303

muted

#7D7878

Preview Lab

Preview with #550D1D

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

Preview Lab → · Contrast checker → · Palette generator →