#511C0F#511C0F

#511C0F is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.6% C 0.083 H 35.0°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#511C0F
RGB	rgb(81, 28, 15)
HSL	hsl(12, 69%, 19%)
HSV	hsv(12, 81%, 32%)
CMYK	cmyk(0%, 65.4%, 81.5%, 68.2%)
CIE-LAB	lab(18.43, 23.98, 21.03)
CIE-LCH	lch(18.43, 31.89, 41.25°)
OKLab	oklab(30.59% 0.068 0.0476)
OKLCH	oklch(30.59% 0.083 35)
XYZ	xyz(3.8952, 2.6149, 0.7514)
Luminance	0.0261 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C0F #0F4451

analogous

#510F23 #511C0F #513D0F

triadic

#511C0F #0F511C #1C0F51

tetradic

#511C0F #23510F #0F4451 #3D0F51

square

#511C0F #23510F #0F4451 #3D0F51

split-complementary

#511C0F #0F513D #0F2351

monochromatic

#1A0905 #1D0A05 #511C0F #852E19 #B84022

Accessibility & contrast

On white

13.79

#511C0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#511C0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C0F

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C0F	#FFFFFF	#000000	##FFFFFF
##511C0F	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260D

Deuteranopia (green-blind)

#38310D

Tritanopia (blue-blind)

#5A1019

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511c0f;
/* rgb */ color: rgb(81, 28, 15);
/* oklch */ color: oklch(30.6% 0.083 35.0);

Tailwind

colors: {
  custom: {
    50: '#875a4e',
    500: '#511c0f',
    950: '#000000',
  },
}

SCSS

$custom: #511c0f;
$custom-light: #875a4e;
$custom-dark: #000000;

JSON

{
  "hex": "#511c0f",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 15
  },
  "hsl": {
    "h": 11.818,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.3059,
    "c": 0.08296,
    "h": 35
  },
  "luminance": 0.02614
}

Semantic roles & 50–950 ramp

primary

#511C0F

secondary

#31798B

accent

#C9EC3C

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511C0F

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

Preview Lab → · Contrast checker → · Palette generator →