#731D18#731D18

#731D18 is a dark, vivid red. Relative luminance 0.046; OKLCH L 37.2% C 0.121 H 27.9°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#731D18
RGB	rgb(115, 29, 24)
HSL	hsl(3, 65%, 27%)
HSV	hsv(3, 79%, 45%)
CMYK	cmyk(0%, 74.8%, 79.1%, 54.9%)
CIE-LAB	lab(25.54, 37.09, 25.37)
CIE-LCH	lch(25.54, 44.93, 34.38°)
OKLab	oklab(37.23% 0.1067 0.0565)
OKLCH	oklch(37.23% 0.121 27.9)
XYZ	xyz(7.6753, 4.5907, 1.3459)
Luminance	0.0459 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731D18 #186E73

analogous

#731840 #731D18 #734B18

triadic

#731D18 #18731D #1D1873

tetradic

#731D18 #407318 #186E73 #4B1873

square

#731D18 #407318 #186E73 #4B1873

split-complementary

#731D18 #18734B #184073

monochromatic

#190605 #40100D #731D18 #A62A23 #D43A31

Accessibility & contrast

On white

10.95

#731D18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#731D18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731D18

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731D18	#FFFFFF	#000000	##FFFFFF
##731D18	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363117

Deuteranopia (green-blind)

#4C4315

Tritanopia (blue-blind)

#7F001D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #731d18;
/* rgb */ color: rgb(115, 29, 24);
/* oklch */ color: oklch(37.2% 0.121 27.9);

Tailwind

colors: {
  custom: {
    50: '#a26055',
    500: '#731d18',
    950: '#000000',
  },
}

SCSS

$custom: #731d18;
$custom-light: #a26055;
$custom-dark: #000000;

JSON

{
  "hex": "#731d18",
  "rgb": {
    "r": 115,
    "g": 29,
    "b": 24
  },
  "hsl": {
    "h": 3.297,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.37232,
    "c": 0.12068,
    "h": 27.9
  },
  "luminance": 0.0459
}

Semantic roles & 50–950 ramp

primary

#731D18

secondary

#3FA2A8

accent

#DFE83F

background

#FAF5F4

surface

#F4EAE8

border

#CEC6C4

text

#100503

muted

#7F7978

Preview Lab

Preview with #731D18

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

Preview Lab → · Contrast checker → · Palette generator →