#581B19#581B19

#581B19 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.091 H 25.5°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#581B19
RGB	rgb(88, 27, 25)
HSL	hsl(2, 56%, 22%)
HSV	hsv(2, 72%, 35%)
CMYK	cmyk(0%, 69.3%, 71.6%, 65.5%)
CIE-LAB	lab(19.76, 27.98, 16.62)
CIE-LCH	lch(19.76, 32.54, 30.71°)
OKLab	oklab(31.9% 0.0818 0.0391)
OKLCH	oklch(31.9% 0.091 25.5)
XYZ	xyz(4.5924, 2.9294, 1.2431)
Luminance	0.0293 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B19 #195658

analogous

#581937 #581B19 #583B19

triadic

#581B19 #19581B #1B1958

tetradic

#581B19 #375819 #195658 #3B1958

square

#581B19 #375819 #195658 #3B1958

split-complementary

#581B19 #19583B #193758

monochromatic

#180707 #280C0B #581B19 #882A27 #B73834

Accessibility & contrast

On white

13.24

#581B19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#581B19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B19

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B19	#FFFFFF	#000000	##FFFFFF
##581B19	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2818

Deuteranopia (green-blind)

#3B3517

Tritanopia (blue-blind)

#610D1B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581b19;
/* rgb */ color: rgb(88, 27, 25);
/* oklch */ color: oklch(31.9% 0.091 25.5);

Tailwind

colors: {
  custom: {
    50: '#8c5b55',
    500: '#581b19',
    950: '#000000',
  },
}

SCSS

$custom: #581b19;
$custom-light: #8c5b55;
$custom-dark: #000000;

JSON

{
  "hex": "#581b19",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 25
  },
  "hsl": {
    "h": 1.905,
    "s": 55.752,
    "l": 22.157
  },
  "oklch": {
    "l": 0.31901,
    "c": 0.09067,
    "h": 25.5
  },
  "luminance": 0.02929
}

Semantic roles & 50–950 ramp

primary

#581B19

secondary

#3E8C8E

accent

#DADF49

background

#F9F5F4

surface

#F1E9E8

border

#CBC5C4

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #581B19

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

Preview Lab → · Contrast checker → · Palette generator →