#731B13#731B13

#731B13 is a dark, vivid red. Relative luminance 0.045; OKLCH L 37.0% C 0.123 H 29.5°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#731B13
RGB	rgb(115, 27, 19)
HSL	hsl(5, 72%, 26%)
HSV	hsv(5, 83%, 45%)
CMYK	cmyk(0%, 76.5%, 83.5%, 54.9%)
CIE-LAB	lab(25.19, 37.68, 28.03)
CIE-LCH	lch(25.19, 46.97, 36.64°)
OKLab	oklab(36.96% 0.1074 0.0607)
OKLCH	oklch(36.96% 0.123 29.5)
XYZ	xyz(7.5806, 4.4769, 1.0809)
Luminance	0.0448 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731B13 #136B73

analogous

#73133B #731B13 #734B13

triadic

#731B13 #13731B #1B1373

tetradic

#731B13 #3B7313 #136B73 #4B1373

square

#731B13 #3B7313 #136B73 #4B1373

split-complementary

#731B13 #13734B #133B73

monochromatic

#1A0604 #3E0F0A #731B13 #A8271C #DB3525

Accessibility & contrast

On white

11.08

#731B13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#731B13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731B13

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731B13	#FFFFFF	#000000	##FFFFFF
##731B13	1.00	11.08	1.90	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#362F11

Deuteranopia (green-blind)

#4B430F

Tritanopia (blue-blind)

#7F001A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #731b13;
/* rgb */ color: rgb(115, 27, 19);
/* oklch */ color: oklch(37.0% 0.123 29.5);

Tailwind

colors: {
  custom: {
    50: '#a35f51',
    500: '#731b13',
    950: '#000000',
  },
}

SCSS

$custom: #731b13;
$custom-light: #a35f51;
$custom-dark: #000000;

JSON

{
  "hex": "#731b13",
  "rgb": {
    "r": 115,
    "g": 27,
    "b": 19
  },
  "hsl": {
    "h": 5,
    "s": 71.642,
    "l": 26.275
  },
  "oklch": {
    "l": 0.36955,
    "c": 0.12337,
    "h": 29.5
  },
  "luminance": 0.04476
}

Semantic roles & 50–950 ramp

primary

#731B13

secondary

#38A0AA

accent

#DFEE39

background

#FAF5F4

surface

#F4EAE7

border

#CEC6C3

text

#110502

muted

#807978

Preview Lab

Preview with #731B13

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

Preview Lab → · Contrast checker → · Palette generator →