#581C13#581C13

#581C13 is a dark, moderate red. Relative luminance 0.030; OKLCH L 31.9% C 0.091 H 31.1°. Best body text is #FFFFFF at 13.20:1 contrast (WCAG AA passes).

Color values

HEX	#581C13
RGB	rgb(88, 28, 19)
HSL	hsl(8, 64%, 21%)
HSV	hsv(8, 78%, 35%)
CMYK	cmyk(0%, 68.2%, 78.4%, 65.5%)
CIE-LAB	lab(19.85, 27.11, 20.70)
CIE-LCH	lch(19.85, 34.11, 37.37°)
OKLab	oklab(31.94% 0.0777 0.0469)
OKLCH	oklch(31.94% 0.091 31.1)
XYZ	xyz(4.5578, 2.9529, 0.9459)
Luminance	0.0295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581C13 #134F58

analogous

#58132C #581C13 #583E13

triadic

#581C13 #13581C #1C1358

tetradic

#581C13 #2C5813 #134F58 #3E1358

square

#581C13 #2C5813 #134F58 #3E1358

split-complementary

#581C13 #13583E #132C58

monochromatic

#190805 #260C08 #581C13 #8A2C1E #BD3C29

Accessibility & contrast

On white

13.20

#581C13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#581C13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581C13

13.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581C13	#FFFFFF	#000000	##FFFFFF
##581C13	1.00	13.20	1.59	13.20
#FFFFFF	13.20	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2812

Deuteranopia (green-blind)

#3B3511

Tritanopia (blue-blind)

#610D1A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581c13;
/* rgb */ color: rgb(88, 28, 19);
/* oklch */ color: oklch(31.9% 0.091 31.1);

Tailwind

colors: {
  custom: {
    50: '#8d5b51',
    500: '#581c13',
    950: '#000000',
  },
}

SCSS

$custom: #581c13;
$custom-light: #8d5b51;
$custom-dark: #000000;

JSON

{
  "hex": "#581c13",
  "rgb": {
    "r": 88,
    "g": 28,
    "b": 19
  },
  "hsl": {
    "h": 7.826,
    "s": 64.486,
    "l": 20.98
  },
  "oklch": {
    "l": 0.31943,
    "c": 0.09077,
    "h": 31.1
  },
  "luminance": 0.02952
}

Semantic roles & 50–950 ramp

primary

#581C13

secondary

#378590

accent

#D2E740

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #581C13

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

Preview Lab → · Contrast checker → · Palette generator →