#731C2B#731C2B

#731C2B is a dark, vivid red. Relative luminance 0.046; OKLCH L 37.5% C 0.120 H 15.5°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#731C2B
RGB	rgb(115, 28, 43)
HSL	hsl(350, 61%, 28%)
HSV	hsv(350, 76%, 45%)
CMYK	cmyk(0%, 75.7%, 62.6%, 54.9%)
CIE-LAB	lab(25.72, 38.60, 13.13)
CIE-LCH	lch(25.72, 40.77, 18.79°)
OKLab	oklab(37.47% 0.1157 0.0322)
OKLCH	oklch(37.47% 0.12 15.5)
XYZ	xyz(7.9223, 4.6509, 2.7656)
Luminance	0.0465 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731C2B #1C7364

analogous

#731C56 #731C2B #73381C

triadic

#731C2B #2B731C #1C2B73

tetradic

#731C2B #56731C #1C7364 #381C73

square

#731C2B #56731C #1C7364 #381C73

split-complementary

#731C2B #1C7338 #1C5673

monochromatic

#190609 #421019 #731C2B #A4283D #CF3A54

Accessibility & contrast

On white

10.88

#731C2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#731C2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731C2B

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731C2B	#FFFFFF	#000000	##FFFFFF
##731C2B	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33312B

Deuteranopia (green-blind)

#494429

Tritanopia (blue-blind)

#7E0322

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #731c2b;
/* rgb */ color: rgb(115, 28, 43);
/* oklch */ color: oklch(37.5% 0.120 15.5);

Tailwind

colors: {
  custom: {
    50: '#a16064',
    500: '#731c2b',
    950: '#000000',
  },
}

SCSS

$custom: #731c2b;
$custom-light: #a16064;
$custom-dark: #000000;

JSON

{
  "hex": "#731c2b",
  "rgb": {
    "r": 115,
    "g": 28,
    "b": 43
  },
  "hsl": {
    "h": 349.655,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37471,
    "c": 0.12012,
    "h": 15.5
  },
  "luminance": 0.0465
}

Semantic roles & 50–950 ramp

primary

#731C2B

secondary

#43A796

accent

#E4C844

background

#FAF5F5

surface

#F4EAEA

border

#CEC6C6

text

#100505

muted

#7F7979

Preview Lab

Preview with #731C2B

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

Preview Lab → · Contrast checker → · Palette generator →