#57171B#57171B

#57171B is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.2% C 0.094 H 21.0°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#57171B
RGB	rgb(87, 23, 27)
HSL	hsl(356, 58%, 22%)
HSV	hsv(356, 74%, 34%)
CMYK	cmyk(0%, 73.6%, 69%, 65.9%)
CIE-LAB	lab(18.88, 29.66, 14.10)
CIE-LCH	lch(18.88, 32.84, 25.43°)
OKLab	oklab(31.22% 0.0877 0.0337)
OKLCH	oklch(31.22% 0.094 21)
XYZ	xyz(4.4352, 2.7188, 1.3279)
Luminance	0.0272 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57171B #175753

analogous

#57173B #57171B #573317

triadic

#57171B #1B5717 #171B57

tetradic

#57171B #3B5717 #175753 #331757

square

#57171B #3B5717 #175753 #331757

split-complementary

#57171B #175733 #173B57

monochromatic

#180608 #270A0C #57171B #87242A #B83139

Accessibility & contrast

On white

13.60

#57171B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#57171B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57171B

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57171B	#FFFFFF	#000000	##FFFFFF
##57171B	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28251B

Deuteranopia (green-blind)

#383319

Tritanopia (blue-blind)

#600719

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #57171b;
/* rgb */ color: rgb(87, 23, 27);
/* oklch */ color: oklch(31.2% 0.094 21.0);

Tailwind

colors: {
  custom: {
    50: '#8c5957',
    500: '#57171b',
    950: '#000000',
  },
}

SCSS

$custom: #57171b;
$custom-light: #8c5957;
$custom-dark: #000000;

JSON

{
  "hex": "#57171b",
  "rgb": {
    "r": 87,
    "g": 23,
    "b": 27
  },
  "hsl": {
    "h": 356.25,
    "s": 58.182,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31217,
    "c": 0.094,
    "h": 21
  },
  "luminance": 0.02718
}

Semantic roles & 50–950 ramp

primary

#57171B

secondary

#3C8E89

accent

#E1D846

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #57171B

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

Preview Lab → · Contrast checker → · Palette generator →