#731C10#731C10

#731C10 is a dark, vivid red. Relative luminance 0.045; OKLCH L 37.0% C 0.123 H 31.1°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#731C10
RGB	rgb(115, 28, 16)
HSL	hsl(7, 76%, 26%)
HSV	hsv(7, 86%, 45%)
CMYK	cmyk(0%, 75.7%, 86.1%, 54.9%)
CIE-LAB	lab(25.30, 37.19, 29.86)
CIE-LCH	lch(25.30, 47.69, 38.76°)
OKLab	oklab(37.03% 0.1053 0.0636)
OKLCH	oklch(37.03% 0.123 31.1)
XYZ	xyz(7.5799, 4.5139, 0.9623)
Luminance	0.0451 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731C10 #106773

analogous

#731035 #731C10 #734D10

triadic

#731C10 #10731C #1C1073

tetradic

#731C10 #357310 #106773 #4D1073

square

#731C10 #357310 #106773 #4D1073

split-complementary

#731C10 #10734D #103573

monochromatic

#1B0704 #3D0F09 #731C10 #A92917 #DE361F

Accessibility & contrast

On white

11.04

#731C10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#731C10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731C10

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731C10	#FFFFFF	#000000	##FFFFFF
##731C10	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36300E

Deuteranopia (green-blind)

#4C430B

Tritanopia (blue-blind)

#7F001A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #731c10;
/* rgb */ color: rgb(115, 28, 16);
/* oklch */ color: oklch(37.0% 0.123 31.1);

Tailwind

colors: {
  custom: {
    50: '#a35f4f',
    500: '#731c10',
    950: '#000000',
  },
}

SCSS

$custom: #731c10;
$custom-light: #a35f4f;
$custom-dark: #000000;

JSON

{
  "hex": "#731c10",
  "rgb": {
    "r": 115,
    "g": 28,
    "b": 16
  },
  "hsl": {
    "h": 7.273,
    "s": 75.573,
    "l": 25.686
  },
  "oklch": {
    "l": 0.3703,
    "c": 0.12296,
    "h": 31.1
  },
  "luminance": 0.04513
}

Semantic roles & 50–950 ramp

primary

#731C10

secondary

#349CAA

accent

#DBF236

background

#FAF5F4

surface

#F4EAE7

border

#CEC6C3

text

#110502

muted

#807978

Preview Lab

Preview with #731C10

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

Preview Lab → · Contrast checker → · Palette generator →