#831A28#831A28

#831A28 is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.3% C 0.139 H 19.4°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#831A28
RGB	rgb(131, 26, 40)
HSL	hsl(352, 67%, 31%)
HSV	hsv(352, 80%, 51%)
CMYK	cmyk(0%, 80.2%, 69.5%, 48.6%)
CIE-LAB	lab(28.69, 44.30, 19.62)
CIE-LCH	lch(28.69, 48.45, 23.89°)
OKLab	oklab(40.25% 0.1311 0.0462)
OKLCH	oklch(40.25% 0.139 19.4)
XYZ	xyz(10.1136, 5.7188, 2.5784)
Luminance	0.0572 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831A28 #1A8375

analogous

#831A5C #831A28 #83401A

triadic

#831A28 #28831A #1A2883

tetradic

#831A28 #5C831A #1A8375 #401A83

square

#831A28 #5C831A #1A8375 #401A83

split-complementary

#831A28 #1A8340 #1A5C83

monochromatic

#1D0609 #501018 #831A28 #B62438 #D93F53

Accessibility & contrast

On white

9.80

#831A28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#831A28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831A28

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831A28	#FFFFFF	#000000	##FFFFFF
##831A28	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393528

Deuteranopia (green-blind)

#534C25

Tritanopia (blue-blind)

#900020

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831a28;
/* rgb */ color: rgb(131, 26, 40);
/* oklch */ color: oklch(40.3% 0.139 19.4);

Tailwind

colors: {
  custom: {
    50: '#ae6161',
    500: '#831a28',
    950: '#000000',
  },
}

SCSS

$custom: #831a28;
$custom-light: #ae6161;
$custom-dark: #000000;

JSON

{
  "hex": "#831a28",
  "rgb": {
    "r": 131,
    "g": 26,
    "b": 40
  },
  "hsl": {
    "h": 352,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40254,
    "c": 0.13896,
    "h": 19.4
  },
  "luminance": 0.05717
}

Semantic roles & 50–950 ramp

primary

#831A28

secondary

#42B7A7

accent

#EAD33E

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120505

muted

#817A79

Preview Lab

Preview with #831A28

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

Preview Lab → · Contrast checker → · Palette generator →