#731F10#731F10

#731F10 is a dark, vivid red. Relative luminance 0.047; OKLCH L 37.4% C 0.120 H 32.5°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#731F10
RGB	rgb(115, 31, 16)
HSL	hsl(9, 76%, 26%)
HSV	hsv(9, 86%, 45%)
CMYK	cmyk(0%, 73%, 86.1%, 54.9%)
CIE-LAB	lab(25.75, 35.95, 30.28)
CIE-LCH	lch(25.75, 47.01, 40.11°)
OKLab	oklab(37.37% 0.1014 0.0645)
OKLCH	oklch(37.37% 0.12 32.5)
XYZ	xyz(7.6546, 4.6634, 0.9872)
Luminance	0.0466 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731F10 #106473

analogous

#731032 #731F10 #735010

triadic

#731F10 #10731F #1F1073

tetradic

#731F10 #327310 #106473 #501073

square

#731F10 #327310 #106473 #501073

split-complementary

#731F10 #107350 #103273

monochromatic

#1B0704 #3D1109 #731F10 #A92D17 #DE3C1F

Accessibility & contrast

On white

10.87

#731F10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#731F10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731F10

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731F10	#FFFFFF	#000000	##FFFFFF
##731F10	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38310D

Deuteranopia (green-blind)

#4D440C

Tritanopia (blue-blind)

#7F001C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #731f10;
/* rgb */ color: rgb(115, 31, 16);
/* oklch */ color: oklch(37.4% 0.120 32.5);

Tailwind

colors: {
  custom: {
    50: '#a36050',
    500: '#731f10',
    950: '#000000',
  },
}

SCSS

$custom: #731f10;
$custom-light: #a36050;
$custom-dark: #000000;

JSON

{
  "hex": "#731f10",
  "rgb": {
    "r": 115,
    "g": 31,
    "b": 16
  },
  "hsl": {
    "h": 9.091,
    "s": 75.573,
    "l": 25.686
  },
  "oklch": {
    "l": 0.37368,
    "c": 0.12018,
    "h": 32.5
  },
  "luminance": 0.04662
}

Semantic roles & 50–950 ramp

primary

#731F10

secondary

#3498AA

accent

#D6F236

background

#FAF5F4

surface

#F4EAE7

border

#CEC6C3

text

#110502

muted

#807978

Preview Lab

Preview with #731F10

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

Preview Lab → · Contrast checker → · Palette generator →