#581B15#581B15

#581B15 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.091 H 28.8°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#581B15
RGB	rgb(88, 27, 21)
HSL	hsl(5, 61%, 21%)
HSV	hsv(5, 76%, 35%)
CMYK	cmyk(0%, 69.3%, 76.1%, 65.5%)
CIE-LAB	lab(19.69, 27.73, 19.22)
CIE-LCH	lch(19.69, 33.74, 34.72°)
OKLab	oklab(31.83% 0.0801 0.0441)
OKLCH	oklch(31.83% 0.091 28.8)
XYZ	xyz(4.5523, 2.9134, 1.0319)
Luminance	0.0291 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B15 #155258

analogous

#581531 #581B15 #583D15

triadic

#581B15 #15581B #1B1558

tetradic

#581B15 #315815 #155258 #3D1558

square

#581B15 #315815 #155258 #3D1558

split-complementary

#581B15 #15583D #153158

monochromatic

#190806 #270C09 #581B15 #892A21 #BB392D

Accessibility & contrast

On white

13.27

#581B15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#581B15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B15

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B15	#FFFFFF	#000000	##FFFFFF
##581B15	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2714

Deuteranopia (green-blind)

#3B3513

Tritanopia (blue-blind)

#610C1A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581b15;
/* rgb */ color: rgb(88, 27, 21);
/* oklch */ color: oklch(31.8% 0.091 28.8);

Tailwind

colors: {
  custom: {
    50: '#8d5b52',
    500: '#581b15',
    950: '#000000',
  },
}

SCSS

$custom: #581b15;
$custom-light: #8d5b52;
$custom-dark: #000000;

JSON

{
  "hex": "#581b15",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 21
  },
  "hsl": {
    "h": 5.373,
    "s": 61.468,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31831,
    "c": 0.09145,
    "h": 28.8
  },
  "luminance": 0.02913
}

Semantic roles & 50–950 ramp

primary

#581B15

secondary

#398890

accent

#D6E543

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #581B15

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

Preview Lab → · Contrast checker → · Palette generator →