#581B1E#581B1E

#581B1E is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.0% C 0.090 H 21.0°. Best body text is #FFFFFF at 13.20:1 contrast (WCAG AA passes).

Color values

HEX	#581B1E
RGB	rgb(88, 27, 30)
HSL	hsl(357, 53%, 23%)
HSV	hsv(357, 69%, 35%)
CMYK	cmyk(0%, 69.3%, 65.9%, 65.5%)
CIE-LAB	lab(19.85, 28.34, 13.31)
CIE-LCH	lch(19.85, 31.31, 25.16°)
OKLab	oklab(32% 0.0841 0.0322)
OKLCH	oklch(32% 0.09 21)
XYZ	xyz(4.6512, 2.9529, 1.5531)
Luminance	0.0295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B1E #1B5855

analogous

#581B3D #581B1E #58361B

triadic

#581B1E #1E581B #1B1E58

tetradic

#581B1E #3D581B #1B5855 #361B58

square

#581B1E #3D581B #1B5855 #361B58

split-complementary

#581B1E #1B5836 #1B3D58

monochromatic

#170708 #290D0E #581B1E #87292E #B6383E

Accessibility & contrast

On white

13.20

#581B1E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#581B1E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B1E

13.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B1E	#FFFFFF	#000000	##FFFFFF
##581B1E	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)

#2B281E

Deuteranopia (green-blind)

#3A351C

Tritanopia (blue-blind)

#610E1D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581b1e;
/* rgb */ color: rgb(88, 27, 30);
/* oklch */ color: oklch(32.0% 0.090 21.0);

Tailwind

colors: {
  custom: {
    50: '#8c5b59',
    500: '#581b1e',
    950: '#000000',
  },
}

SCSS

$custom: #581b1e;
$custom-light: #8c5b59;
$custom-dark: #000000;

JSON

{
  "hex": "#581b1e",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 30
  },
  "hsl": {
    "h": 357.049,
    "s": 53.043,
    "l": 22.549
  },
  "oklch": {
    "l": 0.32004,
    "c": 0.09002,
    "h": 21
  },
  "luminance": 0.02952
}

Semantic roles & 50–950 ramp

primary

#581B1E

secondary

#418E8A

accent

#DCD54B

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #581B1E

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

Preview Lab → · Contrast checker → · Palette generator →