#581B0D#581B0D

#581B0D is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.7% C 0.093 H 34.3°. Best body text is #FFFFFF at 13.31:1 contrast (WCAG AA passes).

Color values

HEX	#581B0D
RGB	rgb(88, 27, 13)
HSL	hsl(11, 74%, 20%)
HSV	hsv(11, 85%, 35%)
CMYK	cmyk(0%, 69.3%, 85.2%, 65.5%)
CIE-LAB	lab(19.59, 27.33, 23.74)
CIE-LCH	lch(19.59, 36.20, 40.97°)
OKLab	oklab(31.72% 0.0771 0.0526)
OKLCH	oklch(31.72% 0.093 34.3)
XYZ	xyz(4.4896, 2.8883, 0.7018)
Luminance	0.0289 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B0D #0D4A58

analogous

#580D25 #581B0D #58410D

triadic

#581B0D #0D581B #1B0D58

tetradic

#581B0D #25580D #0D4A58 #410D58

square

#581B0D #25580D #0D4A58 #410D58

split-complementary

#581B0D #0D5841 #0D2558

monochromatic

#1B0804 #230B05 #581B0D #8D2B15 #C33C1D

Accessibility & contrast

On white

13.31

#581B0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#581B0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B0D

13.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B0D	#FFFFFF	#000000	##FFFFFF
##581B0D	1.00	13.31	1.58	13.31
#FFFFFF	13.31	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C270B

Deuteranopia (green-blind)

#3B340B

Tritanopia (blue-blind)

#620A18

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #581b0d;
/* rgb */ color: rgb(88, 27, 13);
/* oklch */ color: oklch(31.7% 0.093 34.3);

Tailwind

colors: {
  custom: {
    50: '#8d5b4d',
    500: '#581b0d',
    950: '#000000',
  },
}

SCSS

$custom: #581b0d;
$custom-light: #8d5b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#581b0d",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 13
  },
  "hsl": {
    "h": 11.2,
    "s": 74.257,
    "l": 19.804
  },
  "oklch": {
    "l": 0.31721,
    "c": 0.09333,
    "h": 34.3
  },
  "luminance": 0.02888
}

Semantic roles & 50–950 ramp

primary

#581B0D

secondary

#2E8093

accent

#CEF137

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #581B0D

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

Preview Lab → · Contrast checker → · Palette generator →