#581813#581813

#581813 is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.4% C 0.095 H 28.2°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#581813
RGB	rgb(88, 24, 19)
HSL	hsl(4, 64%, 21%)
HSV	hsv(4, 78%, 35%)
CMYK	cmyk(0%, 72.7%, 78.4%, 65.5%)
CIE-LAB	lab(19.12, 29.08, 19.86)
CIE-LCH	lch(19.12, 35.22, 34.33°)
OKLab	oklab(31.39% 0.0839 0.0451)
OKLCH	oklch(31.39% 0.095 28.2)
XYZ	xyz(4.4692, 2.7756, 0.9164)
Luminance	0.0278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581813 #135358

analogous

#581330 #581813 #583A13

triadic

#581813 #135818 #181358

tetradic

#581813 #305813 #135358 #3A1358

square

#581813 #305813 #135358 #3A1358

split-complementary

#581813 #13583A #133058

monochromatic

#190705 #260A08 #581813 #8A261E #BD3329

Accessibility & contrast

On white

13.50

#581813 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#581813 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581813

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581813	#FFFFFF	#000000	##FFFFFF
##581813	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2612

Deuteranopia (green-blind)

#3A3411

Tritanopia (blue-blind)

#610617

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #581813;
/* rgb */ color: rgb(88, 24, 19);
/* oklch */ color: oklch(31.4% 0.095 28.2);

Tailwind

colors: {
  custom: {
    50: '#8d5950',
    500: '#581813',
    950: '#000000',
  },
}

SCSS

$custom: #581813;
$custom-light: #8d5950;
$custom-dark: #000000;

JSON

{
  "hex": "#581813",
  "rgb": {
    "r": 88,
    "g": 24,
    "b": 19
  },
  "hsl": {
    "h": 4.348,
    "s": 64.486,
    "l": 20.98
  },
  "oklch": {
    "l": 0.31393,
    "c": 0.09523,
    "h": 28.2
  },
  "luminance": 0.02775
}

Semantic roles & 50–950 ramp

primary

#581813

secondary

#378A90

accent

#DBE740

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #581813

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

Preview Lab → · Contrast checker → · Palette generator →