#57181C#57181C

#57181C is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.4% C 0.093 H 20.7°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#57181C
RGB	rgb(87, 24, 28)
HSL	hsl(356, 57%, 22%)
HSV	hsv(356, 72%, 34%)
CMYK	cmyk(0%, 72.4%, 67.8%, 65.9%)
CIE-LAB	lab(19.07, 29.27, 13.65)
CIE-LCH	lch(19.07, 32.29, 25.01°)
OKLab	oklab(31.37% 0.0867 0.0328)
OKLCH	oklch(31.37% 0.093 20.7)
XYZ	xyz(4.4672, 2.7640, 1.3967)
Luminance	0.0276 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57181C #185753

analogous

#57183C #57181C #573418

triadic

#57181C #1C5718 #181C57

tetradic

#57181C #3C5718 #185753 #341857

square

#57181C #3C5718 #185753 #341857

split-complementary

#57181C #185734 #183C57

monochromatic

#180708 #270B0D #57181C #87252B #B7323B

Accessibility & contrast

On white

13.53

#57181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#57181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57181C

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57181C	#FFFFFF	#000000	##FFFFFF
##57181C	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29261C

Deuteranopia (green-blind)

#38331A

Tritanopia (blue-blind)

#60091A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #57181c;
/* rgb */ color: rgb(87, 24, 28);
/* oklch */ color: oklch(31.4% 0.093 20.7);

Tailwind

colors: {
  custom: {
    50: '#8b5958',
    500: '#57181c',
    950: '#000000',
  },
}

SCSS

$custom: #57181c;
$custom-light: #8b5958;
$custom-dark: #000000;

JSON

{
  "hex": "#57181c",
  "rgb": {
    "r": 87,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 356.19,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.31367,
    "c": 0.0927,
    "h": 20.7
  },
  "luminance": 0.02763
}

Semantic roles & 50–950 ramp

primary

#57181C

secondary

#3D8E89

accent

#E0D648

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #57181C

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

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