#57101B#57101B

#57101B is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.4% C 0.102 H 17.5°. Best body text is #FFFFFF at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#57101B
RGB	rgb(87, 16, 27)
HSL	hsl(351, 69%, 20%)
HSV	hsv(351, 82%, 34%)
CMYK	cmyk(0%, 81.6%, 69%, 65.9%)
CIE-LAB	lab(17.81, 32.61, 12.73)
CIE-LCH	lch(17.81, 35.01, 21.33°)
OKLab	oklab(30.42% 0.0972 0.0306)
OKLCH	oklch(30.42% 0.102 17.5)
XYZ	xyz(4.3141, 2.4766, 1.2876)
Luminance	0.0248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57101B #10574C

analogous

#57103F #57101B #572810

triadic

#57101B #1B5710 #101B57

tetradic

#57101B #3F5710 #10574C #281057

square

#57101B #3F5710 #10574C #281057

split-complementary

#57101B #105728 #103F57

monochromatic

#1A0508 #23060B #57101B #8B1A2B #BE233B

Accessibility & contrast

On white

14.04

#57101B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#57101B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57101B

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57101B	#FFFFFF	#000000	##FFFFFF
##57101B	1.00	14.04	1.50	14.04
#FFFFFF	14.04	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24221B

Deuteranopia (green-blind)

#363119

Tritanopia (blue-blind)

#600015

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #57101b;
/* rgb */ color: rgb(87, 16, 27);
/* oklch */ color: oklch(30.4% 0.102 17.5);

Tailwind

colors: {
  custom: {
    50: '#8c5557',
    500: '#57101b',
    950: '#000000',
  },
}

SCSS

$custom: #57101b;
$custom-light: #8c5557;
$custom-dark: #000000;

JSON

{
  "hex": "#57101b",
  "rgb": {
    "r": 87,
    "g": 16,
    "b": 27
  },
  "hsl": {
    "h": 350.704,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.30422,
    "c": 0.10186,
    "h": 17.5
  },
  "luminance": 0.02476
}

Semantic roles & 50–950 ramp

primary

#57101B

secondary

#329082

accent

#ECD13C

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #57101B

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

Preview Lab → · Contrast checker → · Palette generator →