#511D0C#511D0C

#511D0C is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.7% C 0.083 H 38.0°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#511D0C
RGB	rgb(81, 29, 12)
HSL	hsl(15, 74%, 18%)
HSV	hsv(15, 85%, 32%)
CMYK	cmyk(0%, 64.2%, 85.2%, 68.2%)
CIE-LAB	lab(18.61, 23.28, 22.71)
CIE-LCH	lch(18.61, 32.53, 44.29°)
OKLab	oklab(30.71% 0.0652 0.051)
OKLCH	oklch(30.71% 0.083 38)
XYZ	xyz(3.8995, 2.6551, 0.6549)
Luminance	0.0266 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D0C #0C4051

analogous

#510C1D #511D0C #513F0C

triadic

#511D0C #0C511D #1D0C51

tetradic

#511D0C #1D510C #0C4051 #3F0C51

square

#511D0C #1D510C #0C4051 #3F0C51

split-complementary

#511D0C #0C513F #0C1D51

monochromatic

#1B0A04 #1C0A04 #511D0C #863014 #BC431C

Accessibility & contrast

On white

13.72

#511D0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#511D0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D0C

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D0C	#FFFFFF	#000000	##FFFFFF
##511D0C	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C260A

Deuteranopia (green-blind)

#38320A

Tritanopia (blue-blind)

#5A1119

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511d0c;
/* rgb */ color: rgb(81, 29, 12);
/* oklch */ color: oklch(30.7% 0.083 38.0);

Tailwind

colors: {
  custom: {
    50: '#875b4c',
    500: '#511d0c',
    950: '#000000',
  },
}

SCSS

$custom: #511d0c;
$custom-light: #875b4c;
$custom-dark: #000000;

JSON

{
  "hex": "#511d0c",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 12
  },
  "hsl": {
    "h": 14.783,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.30712,
    "c": 0.08278,
    "h": 38
  },
  "luminance": 0.02655
}

Semantic roles & 50–950 ramp

primary

#511D0C

secondary

#2C758C

accent

#C3F137

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511D0C

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

Preview Lab → · Contrast checker → · Palette generator →