#551B0D#551B0D

#551B0D is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.2% C 0.090 H 34.8°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#551B0D
RGB	rgb(85, 27, 13)
HSL	hsl(12, 73%, 19%)
HSV	hsv(12, 85%, 33%)
CMYK	cmyk(0%, 68.2%, 84.7%, 66.7%)
CIE-LAB	lab(18.99, 26.10, 22.89)
CIE-LCH	lch(18.99, 34.72, 41.25°)
OKLab	oklab(31.16% 0.0736 0.0511)
OKLCH	oklch(31.16% 0.09 34.8)
XYZ	xyz(4.2114, 2.7448, 0.6887)
Luminance	0.0274 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B0D #0D4755

analogous

#550D23 #551B0D #553F0D

triadic

#551B0D #0D551B #1B0D55

tetradic

#551B0D #23550D #0D4755 #3F0D55

square

#551B0D #23550D #0D4755 #3F0D55

split-complementary

#551B0D #0D553F #0D2355

monochromatic

#1B0804 #200A05 #551B0D #8A2C15 #BF3D1D

Accessibility & contrast

On white

13.56

#551B0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#551B0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B0D

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B0D	#FFFFFF	#000000	##FFFFFF
##551B0D	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260B

Deuteranopia (green-blind)

#3A330B

Tritanopia (blue-blind)

#5E0C18

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #551b0d;
/* rgb */ color: rgb(85, 27, 13);
/* oklch */ color: oklch(31.2% 0.090 34.8);

Tailwind

colors: {
  custom: {
    50: '#8b5a4d',
    500: '#551b0d',
    950: '#000000',
  },
}

SCSS

$custom: #551b0d;
$custom-light: #8b5a4d;
$custom-dark: #000000;

JSON

{
  "hex": "#551b0d",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 13
  },
  "hsl": {
    "h": 11.667,
    "s": 73.469,
    "l": 19.216
  },
  "oklch": {
    "l": 0.31156,
    "c": 0.08964,
    "h": 34.8
  },
  "luminance": 0.02744
}

Semantic roles & 50–950 ramp

primary

#551B0D

secondary

#2E7D90

accent

#CCF038

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #551B0D

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

Preview Lab → · Contrast checker → · Palette generator →