#57181F#57181F

#57181F is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.4% C 0.093 H 17.9°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#57181F
RGB	rgb(87, 24, 31)
HSL	hsl(353, 57%, 22%)
HSV	hsv(353, 72%, 34%)
CMYK	cmyk(0%, 72.4%, 64.4%, 65.9%)
CIE-LAB	lab(19.14, 29.50, 11.64)
CIE-LCH	lch(19.14, 31.71, 21.54°)
OKLab	oklab(31.44% 0.0881 0.0285)
OKLCH	oklch(31.44% 0.093 17.9)
XYZ	xyz(4.5049, 2.7791, 1.5953)
Luminance	0.0278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57181F #185750

analogous

#57183F #57181F #573118

triadic

#57181F #1F5718 #181F57

tetradic

#57181F #3F5718 #185750 #311857

square

#57181F #3F5718 #185750 #311857

split-complementary

#57181F #185731 #183F57

monochromatic

#180709 #270B0E #57181F #872530 #B73241

Accessibility & contrast

On white

13.50

#57181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#57181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57181F

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57181F	#FFFFFF	#000000	##FFFFFF
##57181F	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28261F

Deuteranopia (green-blind)

#38331D

Tritanopia (blue-blind)

#600A1B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #57181f;
/* rgb */ color: rgb(87, 24, 31);
/* oklch */ color: oklch(31.4% 0.093 17.9);

Tailwind

colors: {
  custom: {
    50: '#8b595a',
    500: '#57181f',
    950: '#000000',
  },
}

SCSS

$custom: #57181f;
$custom-light: #8b595a;
$custom-dark: #000000;

JSON

{
  "hex": "#57181f",
  "rgb": {
    "r": 87,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 353.333,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.31436,
    "c": 0.09255,
    "h": 17.9
  },
  "luminance": 0.02778
}

Semantic roles & 50–950 ramp

primary

#57181F

secondary

#3D8E85

accent

#E0CF48

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0D0403

muted

#7D7978

Preview Lab

Preview with #57181F

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

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