#511A0D#511A0D

#511A0D is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.3% C 0.086 H 34.6°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#511A0D
RGB	rgb(81, 26, 13)
HSL	hsl(11, 72%, 18%)
HSV	hsv(11, 84%, 32%)
CMYK	cmyk(0%, 67.9%, 84%, 68.2%)
CIE-LAB	lab(18.00, 24.96, 21.52)
CIE-LCH	lch(18.00, 32.96, 40.77°)
OKLab	oklab(30.26% 0.0706 0.0487)
OKLCH	oklch(30.26% 0.086 34.6)
XYZ	xyz(3.8358, 2.5177, 0.6647)
Luminance	0.0252 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A0D #0D4451

analogous

#510D22 #511A0D #513C0D

triadic

#511A0D #0D511A #1A0D51

tetradic

#511A0D #22510D #0D4451 #3C0D51

square

#511A0D #22510D #0D4451 #3C0D51

split-complementary

#511A0D #0D513C #0D2251

monochromatic

#1A0804 #1C0905 #511A0D #862B15 #BA3C1E

Accessibility & contrast

On white

13.97

#511A0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#511A0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A0D

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A0D	#FFFFFF	#000000	##FFFFFF
##511A0D	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29240B

Deuteranopia (green-blind)

#37310B

Tritanopia (blue-blind)

#5A0C17

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #511a0d;
/* rgb */ color: rgb(81, 26, 13);
/* oklch */ color: oklch(30.3% 0.086 34.6);

Tailwind

colors: {
  custom: {
    50: '#87594d',
    500: '#511a0d',
    950: '#000000',
  },
}

SCSS

$custom: #511a0d;
$custom-light: #87594d;
$custom-dark: #000000;

JSON

{
  "hex": "#511a0d",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 13
  },
  "hsl": {
    "h": 11.471,
    "s": 72.34,
    "l": 18.431
  },
  "oklch": {
    "l": 0.30257,
    "c": 0.08572,
    "h": 34.6
  },
  "luminance": 0.02517
}

Semantic roles & 50–950 ramp

primary

#511A0D

secondary

#2E7A8C

accent

#CCEF39

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511A0D

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

Preview Lab → · Contrast checker → · Palette generator →