#571B1F#571B1F

#571B1F is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.089 H 19.9°. Best body text is #FFFFFF at 13.28:1 contrast (WCAG AA passes).

Color values

HEX	#571B1F
RGB	rgb(87, 27, 31)
HSL	hsl(356, 53%, 22%)
HSV	hsv(356, 69%, 34%)
CMYK	cmyk(0%, 69%, 64.4%, 65.9%)
CIE-LAB	lab(19.68, 28.03, 12.35)
CIE-LCH	lch(19.68, 30.63, 23.78°)
OKLab	oklab(31.84% 0.0834 0.0301)
OKLCH	oklch(31.84% 0.089 19.9)
XYZ	xyz(4.5702, 2.9096, 1.6170)
Luminance	0.0291 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#571B1F #1B5753

analogous

#571B3D #571B1F #57351B

triadic

#571B1F #1F571B #1B1F57

tetradic

#571B1F #3D571B #1B5753 #351B57

square

#571B1F #3D571B #1B5753 #351B57

split-complementary

#571B1F #1B5735 #1B3D57

monochromatic

#170708 #280D0E #571B1F #862930 #B43840

Accessibility & contrast

On white

13.28

#571B1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#571B1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #571B1F

13.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##571B1F	#FFFFFF	#000000	##FFFFFF
##571B1F	1.00	13.28	1.58	13.28
#FFFFFF	13.28	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A281F

Deuteranopia (green-blind)

#39341D

Tritanopia (blue-blind)

#600F1D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #571b1f;
/* rgb */ color: rgb(87, 27, 31);
/* oklch */ color: oklch(31.8% 0.089 19.9);

Tailwind

colors: {
  custom: {
    50: '#8b5b5a',
    500: '#571b1f',
    950: '#000000',
  },
}

SCSS

$custom: #571b1f;
$custom-light: #8b5b5a;
$custom-dark: #000000;

JSON

{
  "hex": "#571b1f",
  "rgb": {
    "r": 87,
    "g": 27,
    "b": 31
  },
  "hsl": {
    "h": 356,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.31841,
    "c": 0.08868,
    "h": 19.9
  },
  "luminance": 0.02909
}

Semantic roles & 50–950 ramp

primary

#571B1F

secondary

#418D88

accent

#DCD24C

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0D0403

muted

#7D7978

Preview Lab

Preview with #571B1F

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

Preview Lab → · Contrast checker → · Palette generator →