#571B17#571B17

#571B17 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.7% C 0.090 H 27.2°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#571B17
RGB	rgb(87, 27, 23)
HSL	hsl(4, 58%, 22%)
HSV	hsv(4, 74%, 34%)
CMYK	cmyk(0%, 69%, 73.6%, 65.9%)
CIE-LAB	lab(19.53, 27.45, 17.64)
CIE-LCH	lch(19.53, 32.63, 32.72°)
OKLab	oklab(31.68% 0.0798 0.041)
OKLCH	oklch(31.68% 0.09 27.2)
XYZ	xyz(4.4775, 2.8726, 1.1291)
Luminance	0.0287 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#571B17 #175357

analogous

#571733 #571B17 #573B17

triadic

#571B17 #17571B #1B1757

tetradic

#571B17 #335717 #175357 #3B1757

square

#571B17 #335717 #175357 #3B1757

split-complementary

#571B17 #17573B #173357

monochromatic

#180806 #270C0A #571B17 #872A24 #B83931

Accessibility & contrast

On white

13.34

#571B17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#571B17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #571B17

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##571B17	#FFFFFF	#000000	##FFFFFF
##571B17	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2716

Deuteranopia (green-blind)

#3A3415

Tritanopia (blue-blind)

#600D1A

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #571b17;
/* rgb */ color: rgb(87, 27, 23);
/* oklch */ color: oklch(31.7% 0.090 27.2);

Tailwind

colors: {
  custom: {
    50: '#8c5b54',
    500: '#571b17',
    950: '#000000',
  },
}

SCSS

$custom: #571b17;
$custom-light: #8c5b54;
$custom-dark: #000000;

JSON

{
  "hex": "#571b17",
  "rgb": {
    "r": 87,
    "g": 27,
    "b": 23
  },
  "hsl": {
    "h": 3.75,
    "s": 58.182,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31678,
    "c": 0.08977,
    "h": 27.2
  },
  "luminance": 0.02872
}

Semantic roles & 50–950 ramp

primary

#571B17

secondary

#3C898E

accent

#D8E146

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #571B17

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

Preview Lab → · Contrast checker → · Palette generator →