#571B18#571B18

#571B18 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.7% C 0.090 H 26.3°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#571B18
RGB	rgb(87, 27, 24)
HSL	hsl(3, 57%, 22%)
HSV	hsv(3, 72%, 34%)
CMYK	cmyk(0%, 69%, 72.4%, 65.9%)
CIE-LAB	lab(19.54, 27.51, 16.99)
CIE-LCH	lch(19.54, 32.33, 31.69°)
OKLab	oklab(31.7% 0.0803 0.0398)
OKLCH	oklch(31.7% 0.09 26.3)
XYZ	xyz(4.4877, 2.8767, 1.1829)
Luminance	0.0288 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#571B18 #185457

analogous

#571835 #571B18 #573B18

triadic

#571B18 #18571B #1B1857

tetradic

#571B18 #355718 #185457 #3B1857

square

#571B18 #355718 #185457 #3B1857

split-complementary

#571B18 #18573B #183557

monochromatic

#180707 #270C0B #571B18 #872A25 #B73932

Accessibility & contrast

On white

13.33

#571B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#571B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #571B18

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##571B18	#FFFFFF	#000000	##FFFFFF
##571B18	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2717

Deuteranopia (green-blind)

#3A3416

Tritanopia (blue-blind)

#600D1B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #571b18;
/* rgb */ color: rgb(87, 27, 24);
/* oklch */ color: oklch(31.7% 0.090 26.3);

Tailwind

colors: {
  custom: {
    50: '#8c5b54',
    500: '#571b18',
    950: '#000000',
  },
}

SCSS

$custom: #571b18;
$custom-light: #8c5b54;
$custom-dark: #000000;

JSON

{
  "hex": "#571b18",
  "rgb": {
    "r": 87,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 2.857,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.31696,
    "c": 0.08959,
    "h": 26.3
  },
  "luminance": 0.02876
}

Semantic roles & 50–950 ramp

primary

#571B18

secondary

#3D8A8E

accent

#D9E048

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #571B18

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

Preview Lab → · Contrast checker → · Palette generator →