#8B1B37#8B1B37

#8B1B37 is a dark, vivid red. Relative luminance 0.065; OKLCH L 42.2% C 0.146 H 12.4°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#8B1B37
RGB	rgb(139, 27, 55)
HSL	hsl(345, 67%, 33%)
HSV	hsv(345, 81%, 55%)
CMYK	cmyk(0%, 80.6%, 60.4%, 45.5%)
CIE-LAB	lab(30.76, 47.38, 12.72)
CIE-LCH	lch(30.76, 49.06, 15.03°)
OKLab	oklab(42.18% 0.143 0.0315)
OKLCH	oklch(42.18% 0.146 12.4)
XYZ	xyz(11.7302, 6.5504, 4.2604)
Luminance	0.0655 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#8B1B37 #1B8B6F

analogous

#8B1B6F #8B1B37 #8B371B

triadic

#8B1B37 #378B1B #1B378B

tetradic

#8B1B37 #6F8B1B #1B8B6F #371B8B

square

#8B1B37 #6F8B1B #1B8B6F #371B8B

split-complementary

#8B1B37 #1B8B37 #1B6F8B

monochromatic

#25070E #581123 #8B1B37 #BE254B #DB456B

Accessibility & contrast

On white

9.09

#8B1B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#8B1B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #8B1B37

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##8B1B37	#FFFFFF	#000000	##FFFFFF
##8B1B37	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3A37

Deuteranopia (green-blind)

#575134

Tritanopia (blue-blind)

#990027

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #8b1b37;
/* rgb */ color: rgb(139, 27, 55);
/* oklch */ color: oklch(42.2% 0.146 12.4);

Tailwind

colors: {
  custom: {
    50: '#b3636d',
    500: '#8b1b37',
    950: '#000000',
  },
}

SCSS

$custom: #8b1b37;
$custom-light: #b3636d;
$custom-dark: #000000;

JSON

{
  "hex": "#8b1b37",
  "rgb": {
    "r": 139,
    "g": 27,
    "b": 55
  },
  "hsl": {
    "h": 345,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.42179,
    "c": 0.14643,
    "h": 12.4
  },
  "luminance": 0.06549
}

Semantic roles & 50–950 ramp

primary

#8B1B37

secondary

#45BC9F

accent

#EABF3D

background

#FBF6F6

surface

#F7EBEB

border

#D0C6C6

text

#120607

muted

#817A7A

Preview Lab

Preview with #8B1B37

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

Preview Lab → · Contrast checker → · Palette generator →