#731B28#731B28

#731B28 is a dark, vivid red. Relative luminance 0.046; OKLCH L 37.3% C 0.121 H 17.3°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#731B28
RGB	rgb(115, 27, 40)
HSL	hsl(351, 62%, 28%)
HSV	hsv(351, 77%, 45%)
CMYK	cmyk(0%, 76.5%, 65.2%, 54.9%)
CIE-LAB	lab(25.51, 38.78, 14.89)
CIE-LCH	lch(25.51, 41.54, 21.01°)
OKLab	oklab(37.3% 0.1157 0.036)
OKLCH	oklch(37.3% 0.121 17.3)
XYZ	xyz(7.8460, 4.5830, 2.4785)
Luminance	0.0458 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731B28 #1B7366

analogous

#731B54 #731B28 #733A1B

triadic

#731B28 #28731B #1B2873

tetradic

#731B28 #54731B #1B7366 #3A1B73

square

#731B28 #54731B #1B7366 #3A1B73

split-complementary

#731B28 #1B733A #1B5473

monochromatic

#190609 #410F17 #731B28 #A52739 #D0384F

Accessibility & contrast

On white

10.96

#731B28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#731B28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731B28

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731B28	#FFFFFF	#000000	##FFFFFF
##731B28	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333128

Deuteranopia (green-blind)

#4A4326

Tritanopia (blue-blind)

#7F0021

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #731b28;
/* rgb */ color: rgb(115, 27, 40);
/* oklch */ color: oklch(37.3% 0.121 17.3);

Tailwind

colors: {
  custom: {
    50: '#a15f61',
    500: '#731b28',
    950: '#000000',
  },
}

SCSS

$custom: #731b28;
$custom-light: #a15f61;
$custom-dark: #000000;

JSON

{
  "hex": "#731b28",
  "rgb": {
    "r": 115,
    "g": 27,
    "b": 40
  },
  "hsl": {
    "h": 351.136,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.37299,
    "c": 0.12115,
    "h": 17.3
  },
  "luminance": 0.04582
}

Semantic roles & 50–950 ramp

primary

#731B28

secondary

#42A899

accent

#E5CD43

background

#FAF5F5

surface

#F4EAE9

border

#CEC6C5

text

#100505

muted

#7F7979

Preview Lab

Preview with #731B28

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

Preview Lab → · Contrast checker → · Palette generator →