#511B0E#511B0E

#511B0E is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.4% C 0.084 H 34.8°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#511B0E
RGB	rgb(81, 27, 14)
HSL	hsl(12, 71%, 19%)
HSV	hsv(12, 83%, 32%)
CMYK	cmyk(0%, 66.7%, 82.7%, 68.2%)
CIE-LAB	lab(18.21, 24.47, 21.29)
CIE-LCH	lch(18.21, 32.44, 41.02°)
OKLab	oklab(30.42% 0.0693 0.0481)
OKLCH	oklch(30.42% 0.084 34.8)
XYZ	xyz(3.8649, 2.5654, 0.7070)
Luminance	0.0256 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B0E #0E4451

analogous

#510E22 #511B0E #513C0E

triadic

#511B0E #0E511B #1B0E51

tetradic

#511B0E #22510E #0E4451 #3C0E51

square

#511B0E #22510E #0E4451 #3C0E51

split-complementary

#511B0E #0E513C #0E2251

monochromatic

#1A0905 #1D0A05 #511B0E #852C17 #B93E20

Accessibility & contrast

On white

13.88

#511B0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#511B0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B0E

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B0E	#FFFFFF	#000000	##FFFFFF
##511B0E	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A250C

Deuteranopia (green-blind)

#37310C

Tritanopia (blue-blind)

#5A0E18

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #511b0e;
/* rgb */ color: rgb(81, 27, 14);
/* oklch */ color: oklch(30.4% 0.084 34.8);

Tailwind

colors: {
  custom: {
    50: '#875a4d',
    500: '#511b0e',
    950: '#000000',
  },
}

SCSS

$custom: #511b0e;
$custom-light: #875a4d;
$custom-dark: #000000;

JSON

{
  "hex": "#511b0e",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 14
  },
  "hsl": {
    "h": 11.642,
    "s": 70.526,
    "l": 18.627
  },
  "oklch": {
    "l": 0.30422,
    "c": 0.08436,
    "h": 34.8
  },
  "luminance": 0.02565
}

Semantic roles & 50–950 ramp

primary

#511B0E

secondary

#2F7A8C

accent

#CBED3A

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511B0E

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

Preview Lab → · Contrast checker → · Palette generator →