#551D18#551D18

#551D18 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.6% C 0.085 H 27.9°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#551D18
RGB	rgb(85, 29, 24)
HSL	hsl(5, 56%, 21%)
HSV	hsv(5, 72%, 33%)
CMYK	cmyk(0%, 65.9%, 71.8%, 66.7%)
CIE-LAB	lab(19.54, 25.66, 16.90)
CIE-LCH	lch(19.54, 30.72, 33.36°)
OKLab	oklab(31.62% 0.0747 0.0397)
OKLCH	oklch(31.62% 0.085 27.9)
XYZ	xyz(4.3510, 2.8766, 1.1901)
Luminance	0.0288 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D18 #185055

analogous

#551832 #551D18 #553C18

triadic

#551D18 #18551D #1D1855

tetradic

#551D18 #325518 #185055 #3C1855

square

#551D18 #325518 #185055 #3C1855

split-complementary

#551D18 #18553C #183255

monochromatic

#180807 #250D0B #551D18 #852D25 #B43E33

Accessibility & contrast

On white

13.33

#551D18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#551D18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D18

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D18	#FFFFFF	#000000	##FFFFFF
##551D18	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2817

Deuteranopia (green-blind)

#3A3417

Tritanopia (blue-blind)

#5E111C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #551d18;
/* rgb */ color: rgb(85, 29, 24);
/* oklch */ color: oklch(31.6% 0.085 27.9);

Tailwind

colors: {
  custom: {
    50: '#8a5c54',
    500: '#551d18',
    950: '#000000',
  },
}

SCSS

$custom: #551d18;
$custom-light: #8a5c54;
$custom-dark: #000000;

JSON

{
  "hex": "#551d18",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 24
  },
  "hsl": {
    "h": 4.918,
    "s": 55.963,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31621,
    "c": 0.0846,
    "h": 27.9
  },
  "luminance": 0.02876
}

Semantic roles & 50–950 ramp

primary

#551D18

secondary

#3D858C

accent

#D3DF49

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #551D18

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

Preview Lab → · Contrast checker → · Palette generator →