#581D1D#581D1D

#581D1D is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.3% C 0.088 H 23.4°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#581D1D
RGB	rgb(88, 29, 29)
HSL	hsl(0, 50%, 23%)
HSV	hsv(0, 67%, 35%)
CMYK	cmyk(0%, 67%, 67%, 65.5%)
CIE-LAB	lab(20.21, 27.24, 14.47)
CIE-LCH	lch(20.21, 30.85, 27.97°)
OKLab	oklab(32.27% 0.0804 0.0347)
OKLCH	oklch(32.27% 0.088 23.4)
XYZ	xyz(4.6861, 3.0428, 1.5027)
Luminance	0.0304 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581D1D #1D5858

analogous

#581D3A #581D1D #583A1D

triadic

#581D1D #1D581D #1D1D58

tetradic

#581D1D #3A581D #1D5858 #3A1D58

square

#581D1D #3A581D #1D5858 #3A1D58

split-complementary

#581D1D #1D583A #1D3A58

monochromatic

#170808 #2A0E0E #581D1D #862C2C #B43B3B

Accessibility & contrast

On white

13.06

#581D1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#581D1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581D1D

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581D1D	#FFFFFF	#000000	##FFFFFF
##581D1D	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C291D

Deuteranopia (green-blind)

#3B351B

Tritanopia (blue-blind)

#61111E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #581d1d;
/* rgb */ color: rgb(88, 29, 29);
/* oklch */ color: oklch(32.3% 0.088 23.4);

Tailwind

colors: {
  custom: {
    50: '#8c5c58',
    500: '#581d1d',
    950: '#000000',
  },
}

SCSS

$custom: #581d1d;
$custom-light: #8c5c58;
$custom-dark: #000000;

JSON

{
  "hex": "#581d1d",
  "rgb": {
    "r": 88,
    "g": 29,
    "b": 29
  },
  "hsl": {
    "h": 0,
    "s": 50.427,
    "l": 22.941
  },
  "oklch": {
    "l": 0.32267,
    "c": 0.08757,
    "h": 23.4
  },
  "luminance": 0.03042
}

Semantic roles & 50–950 ramp

primary

#581D1D

secondary

#448D8D

accent

#DADA4E

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #581D1D

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

Preview Lab → · Contrast checker → · Palette generator →