#531818#531818

#531818 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.5% C 0.088 H 24.0°. Best body text is #FFFFFF at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#531818
RGB	rgb(83, 24, 24)
HSL	hsl(0, 55%, 21%)
HSV	hsv(0, 71%, 33%)
CMYK	cmyk(0%, 71.1%, 71.1%, 67.5%)
CIE-LAB	lab(18.18, 27.43, 15.13)
CIE-LCH	lch(18.18, 31.33, 28.88°)
OKLab	oklab(30.52% 0.0806 0.0358)
OKLCH	oklch(30.52% 0.088 24)
XYZ	xyz(4.0592, 2.5588, 1.1441)
Luminance	0.0256 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#531818 #185353

analogous

#531835 #531818 #533518

triadic

#531818 #185318 #181853

tetradic

#531818 #355318 #185353 #351853

square

#531818 #355318 #185353 #351853

split-complementary

#531818 #185335 #183553

monochromatic

#180707 #240A0A #531818 #822626 #B23333

Accessibility & contrast

On white

13.89

#531818 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#531818 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #531818

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##531818	#FFFFFF	#000000	##FFFFFF
##531818	1.00	13.89	1.51	13.89
#FFFFFF	13.89	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282417

Deuteranopia (green-blind)

#373116

Tritanopia (blue-blind)

#5C0A19

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #531818;
/* rgb */ color: rgb(83, 24, 24);
/* oklch */ color: oklch(30.5% 0.088 24.0);

Tailwind

colors: {
  custom: {
    50: '#885954',
    500: '#531818',
    950: '#000000',
  },
}

SCSS

$custom: #531818;
$custom-light: #885954;
$custom-dark: #000000;

JSON

{
  "hex": "#531818",
  "rgb": {
    "r": 83,
    "g": 24,
    "b": 24
  },
  "hsl": {
    "h": 0,
    "s": 55.14,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30524,
    "c": 0.08816,
    "h": 24
  },
  "luminance": 0.02558
}

Semantic roles & 50–950 ramp

primary

#531818

secondary

#3D8A8A

accent

#DEDE49

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0302

muted

#7D7878

Preview Lab

Preview with #531818

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

Preview Lab → · Contrast checker → · Palette generator →