#581B16#581B16

#581B16 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.091 H 28.0°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#581B16
RGB	rgb(88, 27, 22)
HSL	hsl(5, 60%, 22%)
HSV	hsv(5, 75%, 35%)
CMYK	cmyk(0%, 69.3%, 75%, 65.5%)
CIE-LAB	lab(19.71, 27.79, 18.57)
CIE-LCH	lch(19.71, 33.42, 33.76°)
OKLab	oklab(31.85% 0.0805 0.0429)
OKLCH	oklch(31.85% 0.091 28)
XYZ	xyz(4.5617, 2.9171, 1.0818)
Luminance	0.0292 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B16 #165358

analogous

#581632 #581B16 #583C16

triadic

#581B16 #16581B #1B1658

tetradic

#581B16 #325816 #165358 #3C1658

square

#581B16 #325816 #165358 #3C1658

split-complementary

#581B16 #16583C #163258

monochromatic

#180806 #270C0A #581B16 #892A22 #BA392E

Accessibility & contrast

On white

13.26

#581B16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#581B16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B16

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B16	#FFFFFF	#000000	##FFFFFF
##581B16	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2715

Deuteranopia (green-blind)

#3B3514

Tritanopia (blue-blind)

#610C1A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581b16;
/* rgb */ color: rgb(88, 27, 22);
/* oklch */ color: oklch(31.8% 0.091 28.0);

Tailwind

colors: {
  custom: {
    50: '#8d5b53',
    500: '#581b16',
    950: '#000000',
  },
}

SCSS

$custom: #581b16;
$custom-light: #8d5b53;
$custom-dark: #000000;

JSON

{
  "hex": "#581b16",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 22
  },
  "hsl": {
    "h": 4.545,
    "s": 60,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31848,
    "c": 0.09123,
    "h": 28
  },
  "luminance": 0.02917
}

Semantic roles & 50–950 ramp

primary

#581B16

secondary

#3B898F

accent

#D7E345

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #581B16

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

Preview Lab → · Contrast checker → · Palette generator →