#831A2F#831A2F

#831A2F is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.4% C 0.139 H 15.4°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#831A2F
RGB	rgb(131, 26, 47)
HSL	hsl(348, 67%, 31%)
HSV	hsv(348, 80%, 51%)
CMYK	cmyk(0%, 80.2%, 64.1%, 48.6%)
CIE-LAB	lab(28.83, 44.72, 15.16)
CIE-LCH	lch(28.83, 47.23, 18.73°)
OKLab	oklab(40.4% 0.134 0.0368)
OKLCH	oklch(40.4% 0.139 15.4)
XYZ	xyz(10.2436, 5.7709, 3.2633)
Luminance	0.0577 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831A2F #1A836E

analogous

#831A63 #831A2F #83391A

triadic

#831A2F #2F831A #1A2F83

tetradic

#831A2F #63831A #1A836E #391A83

square

#831A2F #63831A #1A836E #391A83

split-complementary

#831A2F #1A8339 #1A6383

monochromatic

#1D060A #50101D #831A2F #B62441 #D93F5D

Accessibility & contrast

On white

9.75

#831A2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#831A2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831A2F

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831A2F	#FFFFFF	#000000	##FFFFFF
##831A2F	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38362F

Deuteranopia (green-blind)

#534C2C

Tritanopia (blue-blind)

#900023

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831a2f;
/* rgb */ color: rgb(131, 26, 47);
/* oklch */ color: oklch(40.4% 0.139 15.4);

Tailwind

colors: {
  custom: {
    50: '#ae6167',
    500: '#831a2f',
    950: '#000000',
  },
}

SCSS

$custom: #831a2f;
$custom-light: #ae6167;
$custom-dark: #000000;

JSON

{
  "hex": "#831a2f",
  "rgb": {
    "r": 131,
    "g": 26,
    "b": 47
  },
  "hsl": {
    "h": 348,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40398,
    "c": 0.13895,
    "h": 15.4
  },
  "luminance": 0.05769
}

Semantic roles & 50–950 ramp

primary

#831A2F

secondary

#42B79F

accent

#EAC73E

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#110606

muted

#807A7A

Preview Lab

Preview with #831A2F

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

Preview Lab → · Contrast checker → · Palette generator →