#511C0C#511C0C

#511C0C is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.6% C 0.084 H 37.1°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#511C0C
RGB	rgb(81, 28, 12)
HSL	hsl(14, 74%, 18%)
HSV	hsv(14, 85%, 32%)
CMYK	cmyk(0%, 65.4%, 85.2%, 68.2%)
CIE-LAB	lab(18.40, 23.84, 22.46)
CIE-LCH	lch(18.40, 32.75, 43.30°)
OKLab	oklab(30.55% 0.0669 0.0506)
OKLCH	oklch(30.55% 0.084 37.1)
XYZ	xyz(3.8754, 2.6069, 0.6469)
Luminance	0.0261 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C0C #0C4151

analogous

#510C1E #511C0C #513E0C

triadic

#511C0C #0C511C #1C0C51

tetradic

#511C0C #1E510C #0C4151 #3E0C51

square

#511C0C #1E510C #0C4151 #3E0C51

split-complementary

#511C0C #0C513E #0C1E51

monochromatic

#1B0904 #1C0A04 #511C0C #862E14 #BC411C

Accessibility & contrast

On white

13.80

#511C0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#511C0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C0C

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C0C	#FFFFFF	#000000	##FFFFFF
##511C0C	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B250A

Deuteranopia (green-blind)

#38310A

Tritanopia (blue-blind)

#5A0F19

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511c0c;
/* rgb */ color: rgb(81, 28, 12);
/* oklch */ color: oklch(30.6% 0.084 37.1);

Tailwind

colors: {
  custom: {
    50: '#875a4c',
    500: '#511c0c',
    950: '#000000',
  },
}

SCSS

$custom: #511c0c;
$custom-light: #875a4c;
$custom-dark: #000000;

JSON

{
  "hex": "#511c0c",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 12
  },
  "hsl": {
    "h": 13.913,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.30553,
    "c": 0.08384,
    "h": 37.1
  },
  "luminance": 0.02606
}

Semantic roles & 50–950 ramp

primary

#511C0C

secondary

#2C768C

accent

#C6F137

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511C0C

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

Preview Lab → · Contrast checker → · Palette generator →