#581C11#581C11

#581C11 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.091 H 32.5°. Best body text is #FFFFFF at 13.21:1 contrast (WCAG AA passes).

Color values

HEX	#581C11
RGB	rgb(88, 28, 17)
HSL	hsl(9, 68%, 21%)
HSV	hsv(9, 81%, 35%)
CMYK	cmyk(0%, 68.2%, 80.7%, 65.5%)
CIE-LAB	lab(19.83, 27.01, 21.89)
CIE-LCH	lch(19.83, 34.76, 39.02°)
OKLab	oklab(31.91% 0.077 0.0491)
OKLCH	oklch(31.91% 0.091 32.5)
XYZ	xyz(4.5414, 2.9463, 0.8598)
Luminance	0.0295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581C11 #114D58

analogous

#581129 #581C11 #583F11

triadic

#581C11 #11581C #1C1158

tetradic

#581C11 #295811 #114D58 #3F1158

square

#581C11 #295811 #114D58 #3F1158

split-complementary

#581C11 #11583F #112958

monochromatic

#1A0805 #250C07 #581C11 #8B2C1B #BF3D25

Accessibility & contrast

On white

13.21

#581C11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#581C11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581C11

13.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581C11	#FFFFFF	#000000	##FFFFFF
##581C11	1.00	13.21	1.59	13.21
#FFFFFF	13.21	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D280F

Deuteranopia (green-blind)

#3C350F

Tritanopia (blue-blind)

#610D1A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581c11;
/* rgb */ color: rgb(88, 28, 17);
/* oklch */ color: oklch(31.9% 0.091 32.5);

Tailwind

colors: {
  custom: {
    50: '#8d5b4f',
    500: '#581c11',
    950: '#000000',
  },
}

SCSS

$custom: #581c11;
$custom-light: #8d5b4f;
$custom-dark: #000000;

JSON

{
  "hex": "#581c11",
  "rgb": {
    "r": 88,
    "g": 28,
    "b": 17
  },
  "hsl": {
    "h": 9.296,
    "s": 67.619,
    "l": 20.588
  },
  "oklch": {
    "l": 0.31914,
    "c": 0.09126,
    "h": 32.5
  },
  "luminance": 0.02946
}

Semantic roles & 50–950 ramp

primary

#581C11

secondary

#348391

accent

#D0EA3D

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #581C11

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

Preview Lab → · Contrast checker → · Palette generator →