#581B0F#581B0F

#581B0F is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.7% C 0.093 H 33.1°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#581B0F
RGB	rgb(88, 27, 15)
HSL	hsl(10, 71%, 20%)
HSV	hsv(10, 83%, 35%)
CMYK	cmyk(0%, 69.3%, 83%, 65.5%)
CIE-LAB	lab(19.61, 27.42, 22.75)
CIE-LCH	lch(19.61, 35.63, 39.69°)
OKLab	oklab(31.75% 0.0778 0.0507)
OKLCH	oklch(31.75% 0.093 33.1)
XYZ	xyz(4.5032, 2.8937, 0.7733)
Luminance	0.0289 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B0F #0F4C58

analogous

#580F27 #581B0F #583F0F

triadic

#581B0F #0F581B #1B0F58

tetradic

#581B0F #27580F #0F4C58 #3F0F58

square

#581B0F #27580F #0F4C58 #3F0F58

split-complementary

#581B0F #0F583F #0F2758

monochromatic

#1A0804 #240B06 #581B0F #8C2B18 #C13B21

Accessibility & contrast

On white

13.30

#581B0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#581B0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B0F

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B0F	#FFFFFF	#000000	##FFFFFF
##581B0F	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C270D

Deuteranopia (green-blind)

#3B340D

Tritanopia (blue-blind)

#610B19

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #581b0f;
/* rgb */ color: rgb(88, 27, 15);
/* oklch */ color: oklch(31.7% 0.093 33.1);

Tailwind

colors: {
  custom: {
    50: '#8d5b4e',
    500: '#581b0f',
    950: '#000000',
  },
}

SCSS

$custom: #581b0f;
$custom-light: #8d5b4e;
$custom-dark: #000000;

JSON

{
  "hex": "#581b0f",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 15
  },
  "hsl": {
    "h": 9.863,
    "s": 70.874,
    "l": 20.196
  },
  "oklch": {
    "l": 0.31745,
    "c": 0.09284,
    "h": 33.1
  },
  "luminance": 0.02893
}

Semantic roles & 50–950 ramp

primary

#581B0F

secondary

#318292

accent

#D0EE3A

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #581B0F

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

Preview Lab → · Contrast checker → · Palette generator →