#58181B#58181B

#58181B is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.5% C 0.094 H 21.8°. Best body text is #FFFFFF at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#58181B
RGB	rgb(88, 24, 27)
HSL	hsl(357, 57%, 22%)
HSV	hsv(357, 73%, 35%)
CMYK	cmyk(0%, 72.7%, 69.3%, 65.5%)
CIE-LAB	lab(19.26, 29.57, 14.62)
CIE-LCH	lch(19.26, 32.99, 26.31°)
OKLab	oklab(31.54% 0.0873 0.0349)
OKLCH	oklch(31.54% 0.094 21.8)
XYZ	xyz(4.5494, 2.8077, 1.3391)
Luminance	0.0281 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#58181B #185855

analogous

#58183B #58181B #583518

triadic

#58181B #1B5818 #181B58

tetradic

#58181B #3B5818 #185855 #351858

square

#58181B #3B5818 #185855 #351858

split-complementary

#58181B #185835 #183B58

monochromatic

#180707 #280B0C #58181B #88252A #B83239

Accessibility & contrast

On white

13.45

#58181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#58181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #58181B

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##58181B	#FFFFFF	#000000	##FFFFFF
##58181B	1.00	13.45	1.56	13.45
#FFFFFF	13.45	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29261B

Deuteranopia (green-blind)

#393419

Tritanopia (blue-blind)

#61081A

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #58181b;
/* rgb */ color: rgb(88, 24, 27);
/* oklch */ color: oklch(31.5% 0.094 21.8);

Tailwind

colors: {
  custom: {
    50: '#8c5957',
    500: '#58181b',
    950: '#000000',
  },
}

SCSS

$custom: #58181b;
$custom-light: #8c5957;
$custom-dark: #000000;

JSON

{
  "hex": "#58181b",
  "rgb": {
    "r": 88,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 357.188,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31537,
    "c": 0.09402,
    "h": 21.8
  },
  "luminance": 0.02807
}

Semantic roles & 50–950 ramp

primary

#58181B

secondary

#3D8F8B

accent

#E0D947

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #58181B

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

Preview Lab → · Contrast checker → · Palette generator →