#871B1B#871B1B

#871B1B is a dark, vivid red. Relative luminance 0.060; OKLCH L 40.9% C 0.143 H 26.3°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#871B1B
RGB	rgb(135, 27, 27)
HSL	hsl(0, 67%, 32%)
HSV	hsv(0, 80%, 53%)
CMYK	cmyk(0%, 80%, 80%, 47.1%)
CIE-LAB	lab(29.45, 44.63, 28.97)
CIE-LCH	lch(29.45, 53.20, 32.99°)
OKLab	oklab(40.91% 0.1285 0.0636)
OKLCH	oklch(40.91% 0.143 26.3)
XYZ	xyz(10.5827, 6.0156, 1.6406)
Luminance	0.0601 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#871B1B #1B8787

analogous

#871B51 #871B1B #87511B

triadic

#871B1B #1B871B #1B1B87

tetradic

#871B1B #51871B #1B8787 #511B87

square

#871B1B #51871B #1B8787 #511B87

split-complementary

#871B1B #1B8751 #1B5187

monochromatic

#210707 #541111 #871B1B #BA2525 #D94343

Accessibility & contrast

On white

9.53

#871B1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#871B1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #871B1B

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##871B1B	#FFFFFF	#000000	##FFFFFF
##871B1B	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D361A

Deuteranopia (green-blind)

#574E16

Tritanopia (blue-blind)

#95001D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #871b1b;
/* rgb */ color: rgb(135, 27, 27);
/* oklch */ color: oklch(40.9% 0.143 26.3);

Tailwind

colors: {
  custom: {
    50: '#b26258',
    500: '#871b1b',
    950: '#000000',
  },
}

SCSS

$custom: #871b1b;
$custom-light: #b26258;
$custom-dark: #000000;

JSON

{
  "hex": "#871b1b",
  "rgb": {
    "r": 135,
    "g": 27,
    "b": 27
  },
  "hsl": {
    "h": 0,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.40907,
    "c": 0.1434,
    "h": 26.3
  },
  "luminance": 0.06014
}

Semantic roles & 50–950 ramp

primary

#871B1B

secondary

#44BABA

accent

#EAEA3E

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #871B1B

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

Preview Lab → · Contrast checker → · Palette generator →