#831E37#831E37

#831E37 is a dark, vivid red. Relative luminance 0.060; OKLCH L 40.9% C 0.136 H 11.4°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#831E37
RGB	rgb(131, 30, 55)
HSL	hsl(345, 63%, 32%)
HSV	hsv(345, 77%, 51%)
CMYK	cmyk(0%, 77.1%, 58%, 48.6%)
CIE-LAB	lab(29.49, 43.94, 10.73)
CIE-LCH	lch(29.49, 45.23, 13.72°)
OKLab	oklab(40.95% 0.133 0.0269)
OKLCH	oklch(40.95% 0.136 11.4)
XYZ	xyz(10.5149, 6.0312, 4.2241)
Luminance	0.0603 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831E37 #1E836A

analogous

#831E6A #831E37 #83381E

triadic

#831E37 #37831E #1E3783

tetradic

#831E37 #6A831E #1E836A #381E83

square

#831E37 #6A831E #1E836A #381E83

split-complementary

#831E37 #1E8338 #1E6A83

monochromatic

#1F070D #511322 #831E37 #B5294C #D5476A

Accessibility & contrast

On white

9.52

#831E37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#831E37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831E37

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831E37	#FFFFFF	#000000	##FFFFFF
##831E37	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393837

Deuteranopia (green-blind)

#534D34

Tritanopia (blue-blind)

#900028

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #831e37;
/* rgb */ color: rgb(131, 30, 55);
/* oklch */ color: oklch(40.9% 0.136 11.4);

Tailwind

colors: {
  custom: {
    50: '#ad636d',
    500: '#831e37',
    950: '#000000',
  },
}

SCSS

$custom: #831e37;
$custom-light: #ad636d;
$custom-dark: #000000;

JSON

{
  "hex": "#831e37",
  "rgb": {
    "r": 131,
    "g": 30,
    "b": 55
  },
  "hsl": {
    "h": 345.149,
    "s": 62.733,
    "l": 31.569
  },
  "oklch": {
    "l": 0.40948,
    "c": 0.13564,
    "h": 11.4
  },
  "luminance": 0.0603
}

Semantic roles & 50–950 ramp

primary

#831E37

secondary

#47B69A

accent

#E6BD42

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#110607

muted

#807A7A

Preview Lab

Preview with #831E37

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

Preview Lab → · Contrast checker → · Palette generator →