#871B31#871B31

#871B31 is a dark, vivid red. Relative luminance 0.062; OKLCH L 41.3% C 0.142 H 15.2°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#871B31
RGB	rgb(135, 27, 49)
HSL	hsl(348, 67%, 32%)
HSV	hsv(348, 80%, 53%)
CMYK	cmyk(0%, 80%, 63.7%, 47.1%)
CIE-LAB	lab(29.81, 45.76, 15.28)
CIE-LCH	lch(29.81, 48.25, 18.46°)
OKLab	oklab(41.29% 0.1372 0.0372)
OKLCH	oklch(41.29% 0.142 15.2)
XYZ	xyz(10.9391, 6.1582, 3.5178)
Luminance	0.0616 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#871B31 #1B8771

analogous

#871B67 #871B31 #873B1B

triadic

#871B31 #31871B #1B3187

tetradic

#871B31 #67871B #1B8771 #3B1B87

square

#871B31 #67871B #1B8771 #3B1B87

split-complementary

#871B31 #1B873B #1B6787

monochromatic

#21070C #54111E #871B31 #BA2544 #D94362

Accessibility & contrast

On white

9.41

#871B31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#871B31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #871B31

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##871B31	#FFFFFF	#000000	##FFFFFF
##871B31	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3831

Deuteranopia (green-blind)

#554E2E

Tritanopia (blue-blind)

#940024

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #871b31;
/* rgb */ color: rgb(135, 27, 49);
/* oklch */ color: oklch(41.3% 0.142 15.2);

Tailwind

colors: {
  custom: {
    50: '#b16368',
    500: '#871b31',
    950: '#000000',
  },
}

SCSS

$custom: #871b31;
$custom-light: #b16368;
$custom-dark: #000000;

JSON

{
  "hex": "#871b31",
  "rgb": {
    "r": 135,
    "g": 27,
    "b": 49
  },
  "hsl": {
    "h": 347.778,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.41285,
    "c": 0.1421,
    "h": 15.2
  },
  "luminance": 0.06157
}

Semantic roles & 50–950 ramp

primary

#871B31

secondary

#44BAA2

accent

#EAC73E

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#120606

muted

#817A7A

Preview Lab

Preview with #871B31

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

Preview Lab → · Contrast checker → · Palette generator →