#531B10#531B10

#531B10 is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.8% C 0.086 H 33.0°. Best body text is #FFFFFF at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#531B10
RGB	rgb(83, 27, 16)
HSL	hsl(10, 68%, 19%)
HSV	hsv(10, 81%, 33%)
CMYK	cmyk(0%, 67.5%, 80.7%, 67.5%)
CIE-LAB	lab(18.63, 25.41, 20.82)
CIE-LCH	lch(18.63, 32.85, 39.32°)
OKLab	oklab(30.82% 0.0724 0.0471)
OKLCH	oklch(30.82% 0.086 33)
XYZ	xyz(4.0532, 2.6608, 0.7903)
Luminance	0.0266 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#531B10 #104853

analogous

#531027 #531B10 #533D10

triadic

#531B10 #10531B #1B1053

tetradic

#531B10 #275310 #104853 #3D1053

square

#531B10 #275310 #104853 #3D1053

split-complementary

#531B10 #10533D #102753

monochromatic

#1A0805 #200A06 #531B10 #862C1A #BA3C24

Accessibility & contrast

On white

13.71

#531B10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#531B10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #531B10

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##531B10	#FFFFFF	#000000	##FFFFFF
##531B10	1.00	13.71	1.53	13.71
#FFFFFF	13.71	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A260F

Deuteranopia (green-blind)

#38320E

Tritanopia (blue-blind)

#5C0D19

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #531b10;
/* rgb */ color: rgb(83, 27, 16);
/* oklch */ color: oklch(30.8% 0.086 33.0);

Tailwind

colors: {
  custom: {
    50: '#895a4e',
    500: '#531b10',
    950: '#000000',
  },
}

SCSS

$custom: #531b10;
$custom-light: #895a4e;
$custom-dark: #000000;

JSON

{
  "hex": "#531b10",
  "rgb": {
    "r": 83,
    "g": 27,
    "b": 16
  },
  "hsl": {
    "h": 9.851,
    "s": 67.677,
    "l": 19.412
  },
  "oklch": {
    "l": 0.30821,
    "c": 0.08635,
    "h": 33
  },
  "luminance": 0.0266
}

Semantic roles & 50–950 ramp

primary

#531B10

secondary

#327E8D

accent

#CEEB3D

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #531B10

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

Preview Lab → · Contrast checker → · Palette generator →