#550C1B#550C1B

#550C1B is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.6% C 0.104 H 15.5°. Best body text is #FFFFFF at 14.44:1 contrast (WCAG AA passes).

Color values

HEX	#550C1B
RGB	rgb(85, 12, 27)
HSL	hsl(348, 75%, 19%)
HSV	hsv(348, 86%, 33%)
CMYK	cmyk(0%, 85.9%, 68.2%, 66.7%)
CIE-LAB	lab(16.86, 33.36, 11.41)
CIE-LCH	lch(16.86, 35.26, 18.89°)
OKLab	oklab(29.64% 0.0999 0.0276)
OKLCH	oklch(29.64% 0.104 15.5)
XYZ	xyz(4.0760, 2.2740, 1.2610)
Luminance	0.0227 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#550C1B #0C5546

analogous

#550C40 #550C1B #55220C

triadic

#550C1B #1B550C #0C1B55

tetradic

#550C1B #40550C #0C5546 #220C55

square

#550C1B #40550C #0C5546 #220C55

split-complementary

#550C1B #0C5522 #0C4055

monochromatic

#1B0409 #1F040A #550C1B #8B142C #C01B3D

Accessibility & contrast

On white

14.44

#550C1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#550C1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #550C1B

14.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##550C1B	#FFFFFF	#000000	##FFFFFF
##550C1B	1.00	14.44	1.45	14.44
#FFFFFF	14.44	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21201B

Deuteranopia (green-blind)

#342F19

Tritanopia (blue-blind)

#5E0013

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #550c1b;
/* rgb */ color: rgb(85, 12, 27);
/* oklch */ color: oklch(29.6% 0.104 15.5);

Tailwind

colors: {
  custom: {
    50: '#8a5356',
    500: '#550c1b',
    950: '#000000',
  },
}

SCSS

$custom: #550c1b;
$custom-light: #8a5356;
$custom-dark: #000000;

JSON

{
  "hex": "#550c1b",
  "rgb": {
    "r": 85,
    "g": 12,
    "b": 27
  },
  "hsl": {
    "h": 347.671,
    "s": 75.258,
    "l": 19.02
  },
  "oklch": {
    "l": 0.2964,
    "c": 0.10362,
    "h": 15.5
  },
  "luminance": 0.02273
}

Semantic roles & 50–950 ramp

primary

#550C1B

secondary

#2D907C

accent

#F2CB36

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #550C1B

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

Preview Lab → · Contrast checker → · Palette generator →