#731C11#731C11

#731C11 is a dark, vivid red. Relative luminance 0.045; OKLCH L 37.0% C 0.123 H 30.7°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#731C11
RGB	rgb(115, 28, 17)
HSL	hsl(7, 74%, 26%)
HSV	hsv(7, 85%, 45%)
CMYK	cmyk(0%, 75.7%, 85.2%, 54.9%)
CIE-LAB	lab(25.31, 37.22, 29.31)
CIE-LCH	lch(25.31, 47.38, 38.22°)
OKLab	oklab(37.04% 0.1056 0.0627)
OKLCH	oklch(37.04% 0.123 30.7)
XYZ	xyz(7.5876, 4.5170, 1.0026)
Luminance	0.0452 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731C11 #116873

analogous

#731137 #731C11 #734D11

triadic

#731C11 #11731C #1C1173

tetradic

#731C11 #377311 #116873 #4D1173

square

#731C11 #377311 #116873 #4D1173

split-complementary

#731C11 #11734D #113773

monochromatic

#1B0604 #3E0F09 #731C11 #A82919 #DE3621

Accessibility & contrast

On white

11.03

#731C11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#731C11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731C11

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731C11	#FFFFFF	#000000	##FFFFFF
##731C11	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36300F

Deuteranopia (green-blind)

#4C430D

Tritanopia (blue-blind)

#7F001A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #731c11;
/* rgb */ color: rgb(115, 28, 17);
/* oklch */ color: oklch(37.0% 0.123 30.7);

Tailwind

colors: {
  custom: {
    50: '#a35f50',
    500: '#731c11',
    950: '#000000',
  },
}

SCSS

$custom: #731c11;
$custom-light: #a35f50;
$custom-dark: #000000;

JSON

{
  "hex": "#731c11",
  "rgb": {
    "r": 115,
    "g": 28,
    "b": 17
  },
  "hsl": {
    "h": 6.735,
    "s": 74.242,
    "l": 25.882
  },
  "oklch": {
    "l": 0.3704,
    "c": 0.12279,
    "h": 30.7
  },
  "luminance": 0.04516
}

Semantic roles & 50–950 ramp

primary

#731C11

secondary

#369DAA

accent

#DCF137

background

#FAF5F4

surface

#F4EAE7

border

#CEC6C3

text

#110502

muted

#807978

Preview Lab

Preview with #731C11

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

Preview Lab → · Contrast checker → · Palette generator →