#511C10#511C10

#511C10 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.6% C 0.083 H 34.2°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#511C10
RGB	rgb(81, 28, 16)
HSL	hsl(11, 67%, 19%)
HSV	hsv(11, 80%, 32%)
CMYK	cmyk(0%, 65.4%, 80.2%, 68.2%)
CIE-LAB	lab(18.44, 24.03, 20.50)
CIE-LCH	lch(18.44, 31.59, 40.47°)
OKLab	oklab(30.6% 0.0683 0.0465)
OKLCH	oklch(30.6% 0.083 34.2)
XYZ	xyz(3.9025, 2.6178, 0.7899)
Luminance	0.0262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C10 #104551

analogous

#511025 #511C10 #513D10

triadic

#511C10 #10511C #1C1051

tetradic

#511C10 #255110 #104551 #3D1051

square

#511C10 #255110 #104551 #3D1051

split-complementary

#511C10 #10513D #102551

monochromatic

#1A0905 #1E0A06 #511C10 #842E1A #B73F24

Accessibility & contrast

On white

13.78

#511C10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#511C10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C10

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C10	#FFFFFF	#000000	##FFFFFF
##511C10	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260E

Deuteranopia (green-blind)

#38310E

Tritanopia (blue-blind)

#5A1019

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511c10;
/* rgb */ color: rgb(81, 28, 16);
/* oklch */ color: oklch(30.6% 0.083 34.2);

Tailwind

colors: {
  custom: {
    50: '#875a4e',
    500: '#511c10',
    950: '#000000',
  },
}

SCSS

$custom: #511c10;
$custom-light: #875a4e;
$custom-dark: #000000;

JSON

{
  "hex": "#511c10",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 16
  },
  "hsl": {
    "h": 11.077,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.30604,
    "c": 0.08267,
    "h": 34.2
  },
  "luminance": 0.02617
}

Semantic roles & 50–950 ramp

primary

#511C10

secondary

#327A8B

accent

#CAEA3E

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511C10

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

Preview Lab → · Contrast checker → · Palette generator →