#871F31#871F31

#871F31 is a dark, vivid red. Relative luminance 0.064; OKLCH L 41.6% C 0.138 H 16.2°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#871F31
RGB	rgb(135, 31, 49)
HSL	hsl(350, 63%, 33%)
HSV	hsv(350, 77%, 53%)
CMYK	cmyk(0%, 77%, 63.7%, 47.1%)
CIE-LAB	lab(30.29, 44.41, 15.91)
CIE-LCH	lch(30.29, 47.18, 19.71°)
OKLab	oklab(41.64% 0.1328 0.0386)
OKLCH	oklch(41.64% 0.138 16.2)
XYZ	xyz(11.0372, 6.3542, 3.5505)
Luminance	0.0635 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#871F31 #1F8775

analogous

#871F65 #871F31 #87411F

triadic

#871F31 #31871F #1F3187

tetradic

#871F31 #65871F #1F8775 #411F87

square

#871F31 #65871F #1F8775 #411F87

split-complementary

#871F31 #1F8741 #1F6587

monochromatic

#23080D #55141F #871F31 #B92A43 #D64B63

Accessibility & contrast

On white

9.25

#871F31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#871F31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #871F31

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##871F31	#FFFFFF	#000000	##FFFFFF
##871F31	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3931

Deuteranopia (green-blind)

#564F2E

Tritanopia (blue-blind)

#940027

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #871f31;
/* rgb */ color: rgb(135, 31, 49);
/* oklch */ color: oklch(41.6% 0.138 16.2);

Tailwind

colors: {
  custom: {
    50: '#b06468',
    500: '#871f31',
    950: '#000000',
  },
}

SCSS

$custom: #871f31;
$custom-light: #b06468;
$custom-dark: #000000;

JSON

{
  "hex": "#871f31",
  "rgb": {
    "r": 135,
    "g": 31,
    "b": 49
  },
  "hsl": {
    "h": 349.615,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.41642,
    "c": 0.13833,
    "h": 16.2
  },
  "luminance": 0.06353
}

Semantic roles & 50–950 ramp

primary

#871F31

secondary

#4AB8A5

accent

#E6C942

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#120606

muted

#817A7A

Preview Lab

Preview with #871F31

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

Preview Lab → · Contrast checker → · Palette generator →