#831015#831015

#831015 is a dark, vivid red. Relative luminance 0.052; OKLCH L 39.2% C 0.148 H 25.9°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#831015
RGB	rgb(131, 16, 21)
HSL	hsl(357, 78%, 29%)
HSV	hsv(357, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 84%, 48.6%)
CIE-LAB	lab(27.44, 46.27, 30.23)
CIE-LCH	lch(27.44, 55.27, 33.15°)
OKLab	oklab(39.24% 0.1329 0.0646)
OKLCH	oklch(39.24% 0.148 25.9)
XYZ	xyz(9.6819, 5.2516, 1.2132)
Luminance	0.0525 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831015 #10837E

analogous

#83104F #831015 #834510

triadic

#831015 #158310 #101583

tetradic

#831015 #4F8310 #10837E #451083

square

#831015 #4F8310 #10837E #451083

split-complementary

#831015 #108345 #104F83

monochromatic

#1B0304 #4C090C #831015 #BA171E #E52931

Accessibility & contrast

On white

10.24

#831015 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#831015 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831015

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831015	#FFFFFF	#000000	##FFFFFF
##831015	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373114

Deuteranopia (green-blind)

#53490F

Tritanopia (blue-blind)

#910014

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #831015;
/* rgb */ color: rgb(131, 16, 21);
/* oklch */ color: oklch(39.2% 0.148 25.9);

Tailwind

colors: {
  custom: {
    50: '#b05d53',
    500: '#831015',
    950: '#000000',
  },
}

SCSS

$custom: #831015;
$custom-light: #b05d53;
$custom-dark: #000000;

JSON

{
  "hex": "#831015",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 21
  },
  "hsl": {
    "h": 357.391,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39242,
    "c": 0.14776,
    "h": 25.9
  },
  "luminance": 0.0525
}

Semantic roles & 50–950 ramp

primary

#831015

secondary

#36B9B3

accent

#F5EC33

background

#FBF5F4

surface

#F7EAE7

border

#D0C6C3

text

#120502

muted

#817978

Preview Lab

Preview with #831015

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

Preview Lab → · Contrast checker → · Palette generator →