#731D10#731D10

#731D10 is a dark, vivid red. Relative luminance 0.046; OKLCH L 37.1% C 0.122 H 31.5°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#731D10
RGB	rgb(115, 29, 16)
HSL	hsl(8, 76%, 26%)
HSV	hsv(8, 86%, 45%)
CMYK	cmyk(0%, 74.8%, 86.1%, 54.9%)
CIE-LAB	lab(25.45, 36.79, 30.00)
CIE-LCH	lch(25.45, 47.47, 39.20°)
OKLab	oklab(37.14% 0.104 0.0639)
OKLCH	oklch(37.14% 0.122 31.5)
XYZ	xyz(7.6040, 4.5622, 0.9703)
Luminance	0.0456 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731D10 #106673

analogous

#731034 #731D10 #734E10

triadic

#731D10 #10731D #1D1073

tetradic

#731D10 #347310 #106673 #4E1073

square

#731D10 #347310 #106673 #4E1073

split-complementary

#731D10 #10734E #103473

monochromatic

#1B0704 #3D0F09 #731D10 #A92B17 #DE381F

Accessibility & contrast

On white

10.98

#731D10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#731D10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731D10

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731D10	#FFFFFF	#000000	##FFFFFF
##731D10	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37300D

Deuteranopia (green-blind)

#4C430C

Tritanopia (blue-blind)

#7F001B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #731d10;
/* rgb */ color: rgb(115, 29, 16);
/* oklch */ color: oklch(37.1% 0.122 31.5);

Tailwind

colors: {
  custom: {
    50: '#a3604f',
    500: '#731d10',
    950: '#000000',
  },
}

SCSS

$custom: #731d10;
$custom-light: #a3604f;
$custom-dark: #000000;

JSON

{
  "hex": "#731d10",
  "rgb": {
    "r": 115,
    "g": 29,
    "b": 16
  },
  "hsl": {
    "h": 7.879,
    "s": 75.573,
    "l": 25.686
  },
  "oklch": {
    "l": 0.3714,
    "c": 0.12204,
    "h": 31.5
  },
  "luminance": 0.04561
}

Semantic roles & 50–950 ramp

primary

#731D10

secondary

#349BAA

accent

#D9F236

background

#FAF5F4

surface

#F4EAE7

border

#CEC6C3

text

#110502

muted

#807978

Preview Lab

Preview with #731D10

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

Preview Lab → · Contrast checker → · Palette generator →