#831E1F#831E1F

#831E1F is a dark, vivid red. Relative luminance 0.059; OKLCH L 40.5% C 0.136 H 25.3°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#831E1F
RGB	rgb(131, 30, 31)
HSL	hsl(359, 63%, 32%)
HSV	hsv(359, 77%, 51%)
CMYK	cmyk(0%, 77.1%, 76.3%, 48.6%)
CIE-LAB	lab(29.04, 42.47, 25.82)
CIE-LCH	lch(29.04, 49.70, 31.30°)
OKLab	oklab(40.47% 0.1231 0.0582)
OKLCH	oklch(40.47% 0.136 25.3)
XYZ	xyz(10.0728, 5.8543, 1.8957)
Luminance	0.0585 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831E1F #1E8382

analogous

#831E52 #831E1F #83501E

triadic

#831E1F #1F831E #1E1F83

tetradic

#831E1F #52831E #1E8382 #501E83

square

#831E1F #52831E #1E8382 #501E83

split-complementary

#831E1F #1E8350 #1E5283

monochromatic

#1F0707 #511313 #831E1F #B5292B #D54748

Accessibility & contrast

On white

9.67

#831E1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#831E1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831E1F

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831E1F	#FFFFFF	#000000	##FFFFFF
##831E1F	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C371E

Deuteranopia (green-blind)

#554C1B

Tritanopia (blue-blind)

#910020

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831e1f;
/* rgb */ color: rgb(131, 30, 31);
/* oklch */ color: oklch(40.5% 0.136 25.3);

Tailwind

colors: {
  custom: {
    50: '#af635b',
    500: '#831e1f',
    950: '#000000',
  },
}

SCSS

$custom: #831e1f;
$custom-light: #af635b;
$custom-dark: #000000;

JSON

{
  "hex": "#831e1f",
  "rgb": {
    "r": 131,
    "g": 30,
    "b": 31
  },
  "hsl": {
    "h": 359.406,
    "s": 62.733,
    "l": 31.569
  },
  "oklch": {
    "l": 0.4047,
    "c": 0.13618,
    "h": 25.3
  },
  "luminance": 0.05853
}

Semantic roles & 50–950 ramp

primary

#831E1F

secondary

#47B6B5

accent

#E6E442

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120604

muted

#817A79

Preview Lab

Preview with #831E1F

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

Preview Lab → · Contrast checker → · Palette generator →