#871F1B#871F1B

#871F1B is a dark, vivid red. Relative luminance 0.062; OKLCH L 41.3% C 0.140 H 27.5°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#871F1B
RGB	rgb(135, 31, 27)
HSL	hsl(2, 67%, 32%)
HSV	hsv(2, 80%, 53%)
CMYK	cmyk(0%, 77%, 80%, 47.1%)
CIE-LAB	lab(29.94, 43.26, 29.48)
CIE-LCH	lch(29.94, 52.35, 34.27°)
OKLab	oklab(41.27% 0.1242 0.0647)
OKLCH	oklch(41.27% 0.14 27.5)
XYZ	xyz(10.6808, 6.2117, 1.6733)
Luminance	0.0621 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#871F1B #1B8387

analogous

#871B4D #871F1B #87551B

triadic

#871F1B #1B871F #1F1B87

tetradic

#871F1B #4D871B #1B8387 #551B87

square

#871F1B #4D871B #1B8387 #551B87

split-complementary

#871F1B #1B8755 #1B4D87

monochromatic

#210807 #541311 #871F1B #BA2B25 #D94943

Accessibility & contrast

On white

9.37

#871F1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#871F1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #871F1B

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##871F1B	#FFFFFF	#000000	##FFFFFF
##871F1B	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3819

Deuteranopia (green-blind)

#584F17

Tritanopia (blue-blind)

#95001F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #871f1b;
/* rgb */ color: rgb(135, 31, 27);
/* oklch */ color: oklch(41.3% 0.140 27.5);

Tailwind

colors: {
  custom: {
    50: '#b26458',
    500: '#871f1b',
    950: '#000000',
  },
}

SCSS

$custom: #871f1b;
$custom-light: #b26458;
$custom-dark: #000000;

JSON

{
  "hex": "#871f1b",
  "rgb": {
    "r": 135,
    "g": 31,
    "b": 27
  },
  "hsl": {
    "h": 2.222,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.4127,
    "c": 0.14008,
    "h": 27.5
  },
  "luminance": 0.0621
}

Semantic roles & 50–950 ramp

primary

#871F1B

secondary

#44B6BA

accent

#E3EA3E

background

#FBF6F5

surface

#F7EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #871F1B

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

Preview Lab → · Contrast checker → · Palette generator →