#871F1F#871F1F

#871F1F is a dark, vivid red. Relative luminance 0.062; OKLCH L 41.3% C 0.140 H 25.8°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#871F1F
RGB	rgb(135, 31, 31)
HSL	hsl(0, 63%, 33%)
HSV	hsv(0, 77%, 53%)
CMYK	cmyk(0%, 77%, 77%, 47.1%)
CIE-LAB	lab(29.99, 43.42, 27.11)
CIE-LCH	lch(29.99, 51.19, 31.98°)
OKLab	oklab(41.32% 0.1256 0.0607)
OKLCH	oklch(41.32% 0.14 25.8)
XYZ	xyz(10.7302, 6.2315, 1.9339)
Luminance	0.0623 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#871F1F #1F8787

analogous

#871F53 #871F1F #87531F

triadic

#871F1F #1F871F #1F1F87

tetradic

#871F1F #53871F #1F8787 #531F87

square

#871F1F #53871F #1F8787 #531F87

split-complementary

#871F1F #1F8753 #1F5387

monochromatic

#230808 #551414 #871F1F #B92A2A #D64B4B

Accessibility & contrast

On white

9.35

#871F1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#871F1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #871F1F

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##871F1F	#FFFFFF	#000000	##FFFFFF
##871F1F	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E381E

Deuteranopia (green-blind)

#584F1B

Tritanopia (blue-blind)

#950020

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #871f1f;
/* rgb */ color: rgb(135, 31, 31);
/* oklch */ color: oklch(41.3% 0.140 25.8);

Tailwind

colors: {
  custom: {
    50: '#b2645b',
    500: '#871f1f',
    950: '#000000',
  },
}

SCSS

$custom: #871f1f;
$custom-light: #b2645b;
$custom-dark: #000000;

JSON

{
  "hex": "#871f1f",
  "rgb": {
    "r": 135,
    "g": 31,
    "b": 31
  },
  "hsl": {
    "h": 0,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.41322,
    "c": 0.13953,
    "h": 25.8
  },
  "luminance": 0.0623
}

Semantic roles & 50–950 ramp

primary

#871F1F

secondary

#4AB8B8

accent

#E6E642

background

#FBF6F5

surface

#F7EBE9

border

#D0C6C5

text

#120604

muted

#817A79

Preview Lab

Preview with #871F1F

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

Preview Lab → · Contrast checker → · Palette generator →