#581828#581828

#581828 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.094 H 9.3°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#581828
RGB	rgb(88, 24, 40)
HSL	hsl(345, 57%, 22%)
HSV	hsv(345, 73%, 35%)
CMYK	cmyk(0%, 72.7%, 54.5%, 65.5%)
CIE-LAB	lab(19.56, 30.68, 5.92)
CIE-LCH	lch(19.56, 31.24, 10.92°)
OKLab	oklab(31.87% 0.0932 0.0152)
OKLCH	oklch(31.87% 0.094 9.3)
XYZ	xyz(4.7345, 2.8818, 2.3140)
Luminance	0.0288 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581828 #185848

analogous

#581848 #581828 #582818

triadic

#581828 #285818 #182858

tetradic

#581828 #485818 #185848 #281858

square

#581828 #485818 #185848 #281858

split-complementary

#581828 #185828 #184858

monochromatic

#18070B #280B12 #581828 #88253E #B83254

Accessibility & contrast

On white

13.32

#581828 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#581828 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581828

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581828	#FFFFFF	#000000	##FFFFFF
##581828	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272728

Deuteranopia (green-blind)

#373426

Tritanopia (blue-blind)

#600D1E

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #581828;
/* rgb */ color: rgb(88, 24, 40);
/* oklch */ color: oklch(31.9% 0.094 9.3);

Tailwind

colors: {
  custom: {
    50: '#8b5a61',
    500: '#581828',
    950: '#000000',
  },
}

SCSS

$custom: #581828;
$custom-light: #8b5a61;
$custom-dark: #000000;

JSON

{
  "hex": "#581828",
  "rgb": {
    "r": 88,
    "g": 24,
    "b": 40
  },
  "hsl": {
    "h": 345,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31866,
    "c": 0.09441,
    "h": 9.3
  },
  "luminance": 0.02881
}

Semantic roles & 50–950 ramp

primary

#581828

secondary

#3D8F7A

accent

#E0BA47

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0405

muted

#7D7979

Preview Lab

Preview with #581828

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

Preview Lab → · Contrast checker → · Palette generator →