#571B0D#571B0D

#571B0D is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.5% C 0.092 H 34.4°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#571B0D
RGB	rgb(87, 27, 13)
HSL	hsl(11, 74%, 20%)
HSV	hsv(11, 85%, 34%)
CMYK	cmyk(0%, 69%, 85.1%, 65.9%)
CIE-LAB	lab(19.39, 26.93, 23.46)
CIE-LCH	lch(19.39, 35.71, 41.06°)
OKLab	oklab(31.53% 0.076 0.0521)
OKLCH	oklch(31.53% 0.092 34.4)
XYZ	xyz(4.3955, 2.8398, 0.6974)
Luminance	0.0284 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#571B0D #0D4957

analogous

#570D24 #571B0D #57400D

triadic

#571B0D #0D571B #1B0D57

tetradic

#571B0D #24570D #0D4957 #400D57

square

#571B0D #24570D #0D4957 #400D57

split-complementary

#571B0D #0D5740 #0D2457

monochromatic

#1B0804 #220A05 #571B0D #8C2C15 #C13C1D

Accessibility & contrast

On white

13.39

#571B0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#571B0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #571B0D

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##571B0D	#FFFFFF	#000000	##FFFFFF
##571B0D	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C270B

Deuteranopia (green-blind)

#3B340B

Tritanopia (blue-blind)

#600B18

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #571b0d;
/* rgb */ color: rgb(87, 27, 13);
/* oklch */ color: oklch(31.5% 0.092 34.4);

Tailwind

colors: {
  custom: {
    50: '#8c5a4d',
    500: '#571b0d',
    950: '#000000',
  },
}

SCSS

$custom: #571b0d;
$custom-light: #8c5a4d;
$custom-dark: #000000;

JSON

{
  "hex": "#571b0d",
  "rgb": {
    "r": 87,
    "g": 27,
    "b": 13
  },
  "hsl": {
    "h": 11.351,
    "s": 74,
    "l": 19.608
  },
  "oklch": {
    "l": 0.31532,
    "c": 0.0921,
    "h": 34.4
  },
  "luminance": 0.02839
}

Semantic roles & 50–950 ramp

primary

#571B0D

secondary

#2E7F92

accent

#CEF137

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #571B0D

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

Preview Lab → · Contrast checker → · Palette generator →