#731D2B#731D2B

#731D2B is a dark, moderate red. Relative luminance 0.047; OKLCH L 37.6% C 0.119 H 15.9°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#731D2B
RGB	rgb(115, 29, 43)
HSL	hsl(350, 60%, 28%)
HSV	hsv(350, 75%, 45%)
CMYK	cmyk(0%, 74.8%, 62.6%, 54.9%)
CIE-LAB	lab(25.86, 38.20, 13.32)
CIE-LCH	lch(25.86, 40.46, 19.23°)
OKLab	oklab(37.58% 0.1145 0.0326)
OKLCH	oklch(37.58% 0.119 15.9)
XYZ	xyz(7.9464, 4.6991, 2.7736)
Luminance	0.0470 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731D2B #1D7365

analogous

#731D56 #731D2B #733A1D

triadic

#731D2B #2B731D #1D2B73

tetradic

#731D2B #56731D #1D7365 #3A1D73

square

#731D2B #56731D #1D7365 #3A1D73

split-complementary

#731D2B #1D733A #1D5673

monochromatic

#180609 #421119 #731D2B #A4293D #CE3C54

Accessibility & contrast

On white

10.83

#731D2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#731D2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731D2B

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731D2B	#FFFFFF	#000000	##FFFFFF
##731D2B	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34322B

Deuteranopia (green-blind)

#4A4429

Tritanopia (blue-blind)

#7E0523

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #731d2b;
/* rgb */ color: rgb(115, 29, 43);
/* oklch */ color: oklch(37.6% 0.119 15.9);

Tailwind

colors: {
  custom: {
    50: '#a16064',
    500: '#731d2b',
    950: '#000000',
  },
}

SCSS

$custom: #731d2b;
$custom-light: #a16064;
$custom-dark: #000000;

JSON

{
  "hex": "#731d2b",
  "rgb": {
    "r": 115,
    "g": 29,
    "b": 43
  },
  "hsl": {
    "h": 350.233,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37578,
    "c": 0.11901,
    "h": 15.9
  },
  "luminance": 0.04698
}

Semantic roles & 50–950 ramp

primary

#731D2B

secondary

#45A797

accent

#E3C945

background

#FAF5F5

surface

#F4EAEA

border

#CEC6C6

text

#100505

muted

#7F7979

Preview Lab

Preview with #731D2B

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

Preview Lab → · Contrast checker → · Palette generator →