#581B22#581B22

#581B22 is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.1% C 0.090 H 17.1°. Best body text is #FFFFFF at 13.17:1 contrast (WCAG AA passes).

Color values

HEX	#581B22
RGB	rgb(88, 27, 34)
HSL	hsl(353, 53%, 23%)
HSV	hsv(353, 69%, 35%)
CMYK	cmyk(0%, 69.3%, 61.4%, 65.5%)
CIE-LAB	lab(19.94, 28.67, 10.65)
CIE-LCH	lch(19.94, 30.59, 20.38°)
OKLab	oklab(32.1% 0.0859 0.0263)
OKLCH	oklch(32.1% 0.09 17.1)
XYZ	xyz(4.7056, 2.9747, 1.8394)
Luminance	0.0297 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B22 #1B5851

analogous

#581B40 #581B22 #58331B

triadic

#581B22 #22581B #1B2258

tetradic

#581B22 #40581B #1B5851 #331B58

square

#581B22 #40581B #1B5851 #331B58

split-complementary

#581B22 #1B5833 #1B4058

monochromatic

#170709 #290D10 #581B22 #872934 #B63846

Accessibility & contrast

On white

13.17

#581B22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#581B22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B22

13.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B22	#FFFFFF	#000000	##FFFFFF
##581B22	1.00	13.17	1.59	13.17
#FFFFFF	13.17	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2822

Deuteranopia (green-blind)

#3A3520

Tritanopia (blue-blind)

#610F1E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581b22;
/* rgb */ color: rgb(88, 27, 34);
/* oklch */ color: oklch(32.1% 0.090 17.1);

Tailwind

colors: {
  custom: {
    50: '#8b5b5c',
    500: '#581b22',
    950: '#000000',
  },
}

SCSS

$custom: #581b22;
$custom-light: #8b5b5c;
$custom-dark: #000000;

JSON

{
  "hex": "#581b22",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 34
  },
  "hsl": {
    "h": 353.115,
    "s": 53.043,
    "l": 22.549
  },
  "oklch": {
    "l": 0.32098,
    "c": 0.08983,
    "h": 17.1
  },
  "luminance": 0.02974
}

Semantic roles & 50–950 ramp

primary

#581B22

secondary

#418E85

accent

#DCCC4B

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0D0404

muted

#7D7979

Preview Lab

Preview with #581B22

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

Preview Lab → · Contrast checker → · Palette generator →