#731B2A#731B2A

#731B2A is a dark, vivid red. Relative luminance 0.046; OKLCH L 37.3% C 0.121 H 15.9°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#731B2A
RGB	rgb(115, 27, 42)
HSL	hsl(350, 62%, 28%)
HSV	hsv(350, 77%, 45%)
CMYK	cmyk(0%, 76.5%, 63.5%, 54.9%)
CIE-LAB	lab(25.55, 38.92, 13.60)
CIE-LCH	lch(25.55, 41.22, 19.26°)
OKLab	oklab(37.34% 0.1165 0.0332)
OKLCH	oklch(37.34% 0.121 15.9)
XYZ	xyz(7.8809, 4.5970, 2.6624)
Luminance	0.0460 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731B2A #1B7364

analogous

#731B56 #731B2A #73381B

triadic

#731B2A #2A731B #1B2A73

tetradic

#731B2A #56731B #1B7364 #381B73

square

#731B2A #56731B #1B7364 #381B73

split-complementary

#731B2A #1B7338 #1B5673

monochromatic

#190609 #410F18 #731B2A #A5273C #D03852

Accessibility & contrast

On white

10.94

#731B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#731B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731B2A

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731B2A	#FFFFFF	#000000	##FFFFFF
##731B2A	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33312A

Deuteranopia (green-blind)

#494328

Tritanopia (blue-blind)

#7E0121

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #731b2a;
/* rgb */ color: rgb(115, 27, 42);
/* oklch */ color: oklch(37.3% 0.121 15.9);

Tailwind

colors: {
  custom: {
    50: '#a15f63',
    500: '#731b2a',
    950: '#000000',
  },
}

SCSS

$custom: #731b2a;
$custom-light: #a15f63;
$custom-dark: #000000;

JSON

{
  "hex": "#731b2a",
  "rgb": {
    "r": 115,
    "g": 27,
    "b": 42
  },
  "hsl": {
    "h": 349.773,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.37344,
    "c": 0.12117,
    "h": 15.9
  },
  "luminance": 0.04596
}

Semantic roles & 50–950 ramp

primary

#731B2A

secondary

#42A896

accent

#E5C943

background

#FAF5F5

surface

#F4EAEA

border

#CEC6C6

text

#100505

muted

#7F7979

Preview Lab

Preview with #731B2A

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

Preview Lab → · Contrast checker → · Palette generator →