#731818#731818

#731818 is a dark, vivid red. Relative luminance 0.044; OKLCH L 36.7% C 0.125 H 25.9°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#731818
RGB	rgb(115, 24, 24)
HSL	hsl(0, 65%, 27%)
HSV	hsv(0, 79%, 45%)
CMYK	cmyk(0%, 79.1%, 79.1%, 54.9%)
CIE-LAB	lab(24.84, 39.00, 24.61)
CIE-LCH	lch(24.84, 46.12, 32.25°)
OKLab	oklab(36.72% 0.1127 0.0548)
OKLCH	oklch(36.72% 0.125 25.9)
XYZ	xyz(7.5626, 4.3652, 1.3083)
Luminance	0.0436 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731818 #187373

analogous

#731846 #731818 #734618

triadic

#731818 #187318 #181873

tetradic

#731818 #467318 #187373 #461873

square

#731818 #467318 #187373 #461873

split-complementary

#731818 #187346 #184673

monochromatic

#190505 #400D0D #731818 #A62323 #D43131

Accessibility & contrast

On white

11.21

#731818 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#731818 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731818

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731818	#FFFFFF	#000000	##FFFFFF
##731818	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342E17

Deuteranopia (green-blind)

#4A4214

Tritanopia (blue-blind)

#7F0019

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #731818;
/* rgb */ color: rgb(115, 24, 24);
/* oklch */ color: oklch(36.7% 0.125 25.9);

Tailwind

colors: {
  custom: {
    50: '#a35d55',
    500: '#731818',
    950: '#000000',
  },
}

SCSS

$custom: #731818;
$custom-light: #a35d55;
$custom-dark: #000000;

JSON

{
  "hex": "#731818",
  "rgb": {
    "r": 115,
    "g": 24,
    "b": 24
  },
  "hsl": {
    "h": 0,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36716,
    "c": 0.12532,
    "h": 25.9
  },
  "luminance": 0.04364
}

Semantic roles & 50–950 ramp

primary

#731818

secondary

#3FA8A8

accent

#E8E83F

background

#FAF5F4

surface

#F4E9E8

border

#CEC5C4

text

#100503

muted

#7F7978

Preview Lab

Preview with #731818

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

Preview Lab → · Contrast checker → · Palette generator →