#871F37#871F37

#871F37 is a dark, vivid red. Relative luminance 0.064; OKLCH L 41.8% C 0.139 H 12.6°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#871F37
RGB	rgb(135, 31, 55)
HSL	hsl(346, 63%, 33%)
HSV	hsv(346, 77%, 53%)
CMYK	cmyk(0%, 77%, 59.3%, 47.1%)
CIE-LAB	lab(30.42, 44.84, 12.13)
CIE-LCH	lch(30.42, 46.45, 15.13°)
OKLab	oklab(41.78% 0.1353 0.0302)
OKLCH	oklch(41.78% 0.139 12.6)
XYZ	xyz(11.1723, 6.4083, 4.2623)
Luminance	0.0641 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#871F37 #1F876F

analogous

#871F6B #871F37 #873B1F

triadic

#871F37 #37871F #1F3787

tetradic

#871F37 #6B871F #1F876F #3B1F87

square

#871F37 #6B871F #1F876F #3B1F87

split-complementary

#871F37 #1F873B #1F6B87

monochromatic

#23080E #551423 #871F37 #B92A4B #D64B6B

Accessibility & contrast

On white

9.20

#871F37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#871F37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #871F37

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##871F37	#FFFFFF	#000000	##FFFFFF
##871F37	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3A37

Deuteranopia (green-blind)

#564F34

Tritanopia (blue-blind)

#940029

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #871f37;
/* rgb */ color: rgb(135, 31, 55);
/* oklch */ color: oklch(41.8% 0.139 12.6);

Tailwind

colors: {
  custom: {
    50: '#b0646d',
    500: '#871f37',
    950: '#000000',
  },
}

SCSS

$custom: #871f37;
$custom-light: #b0646d;
$custom-dark: #000000;

JSON

{
  "hex": "#871f37",
  "rgb": {
    "r": 135,
    "g": 31,
    "b": 55
  },
  "hsl": {
    "h": 346.154,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.41781,
    "c": 0.13865,
    "h": 12.6
  },
  "luminance": 0.06407
}

Semantic roles & 50–950 ramp

primary

#871F37

secondary

#4AB89F

accent

#E6C042

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#120607

muted

#817A7A

Preview Lab

Preview with #871F37

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

Preview Lab → · Contrast checker → · Palette generator →