#551B0E#551B0E

#551B0E is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.2% C 0.089 H 34.1°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#551B0E
RGB	rgb(85, 27, 14)
HSL	hsl(11, 72%, 19%)
HSV	hsv(11, 84%, 33%)
CMYK	cmyk(0%, 68.2%, 83.5%, 66.7%)
CIE-LAB	lab(19.00, 26.15, 22.41)
CIE-LCH	lch(19.00, 34.44, 40.60°)
OKLab	oklab(31.17% 0.074 0.0502)
OKLCH	oklch(31.17% 0.089 34.1)
XYZ	xyz(4.2180, 2.7475, 0.7236)
Luminance	0.0275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B0E #0E4855

analogous

#550E25 #551B0E #553F0E

triadic

#551B0E #0E551B #1B0E55

tetradic

#551B0E #25550E #0E4855 #3F0E55

square

#551B0E #25550E #0E4855 #3F0E55

split-complementary

#551B0E #0E553F #0E2555

monochromatic

#1A0804 #200A05 #551B0E #8A2C17 #BE3C1F

Accessibility & contrast

On white

13.55

#551B0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#551B0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B0E

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B0E	#FFFFFF	#000000	##FFFFFF
##551B0E	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260C

Deuteranopia (green-blind)

#3A330C

Tritanopia (blue-blind)

#5E0C18

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #551b0e;
/* rgb */ color: rgb(85, 27, 14);
/* oklch */ color: oklch(31.2% 0.089 34.1);

Tailwind

colors: {
  custom: {
    50: '#8b5a4d',
    500: '#551b0e',
    950: '#000000',
  },
}

SCSS

$custom: #551b0e;
$custom-light: #8b5a4d;
$custom-dark: #000000;

JSON

{
  "hex": "#551b0e",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 14
  },
  "hsl": {
    "h": 10.986,
    "s": 71.717,
    "l": 19.412
  },
  "oklch": {
    "l": 0.31168,
    "c": 0.08938,
    "h": 34.1
  },
  "luminance": 0.02747
}

Semantic roles & 50–950 ramp

primary

#551B0E

secondary

#307E8F

accent

#CDEE39

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #551B0E

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

Preview Lab → · Contrast checker → · Palette generator →