#731E1F#731E1F

#731E1F is a dark, moderate red. Relative luminance 0.047; OKLCH L 37.4% C 0.119 H 24.4°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#731E1F
RGB	rgb(115, 30, 31)
HSL	hsl(359, 59%, 28%)
HSV	hsv(359, 74%, 45%)
CMYK	cmyk(0%, 73.9%, 73%, 54.9%)
CIE-LAB	lab(25.78, 37.02, 21.20)
CIE-LCH	lch(25.78, 42.66, 29.80°)
OKLab	oklab(37.45% 0.1081 0.049)
OKLCH	oklch(37.45% 0.119 24.4)
XYZ	xyz(7.7827, 4.6735, 1.7883)
Luminance	0.0467 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731E1F #1E7372

analogous

#731E49 #731E1F #73471E

triadic

#731E1F #1F731E #1E1F73

tetradic

#731E1F #49731E #1E7372 #471E73

square

#731E1F #49731E #1E7372 #471E73

split-complementary

#731E1F #1E7347 #1E4973

monochromatic

#180607 #421112 #731E1F #A42B2C #CD3F40

Accessibility & contrast

On white

10.86

#731E1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#731E1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731E1F

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731E1F	#FFFFFF	#000000	##FFFFFF
##731E1F	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36311E

Deuteranopia (green-blind)

#4B441C

Tritanopia (blue-blind)

#7F021F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #731e1f;
/* rgb */ color: rgb(115, 30, 31);
/* oklch */ color: oklch(37.4% 0.119 24.4);

Tailwind

colors: {
  custom: {
    50: '#a2605a',
    500: '#731e1f',
    950: '#000000',
  },
}

SCSS

$custom: #731e1f;
$custom-light: #a2605a;
$custom-dark: #000000;

JSON

{
  "hex": "#731e1f",
  "rgb": {
    "r": 115,
    "g": 30,
    "b": 31
  },
  "hsl": {
    "h": 359.294,
    "s": 58.621,
    "l": 28.431
  },
  "oklch": {
    "l": 0.37449,
    "c": 0.11864,
    "h": 24.4
  },
  "luminance": 0.04672
}

Semantic roles & 50–950 ramp

primary

#731E1F

secondary

#46A7A6

accent

#E2E046

background

#FAF5F5

surface

#F4EAE9

border

#CEC6C5

text

#100504

muted

#7F7979

Preview Lab

Preview with #731E1F

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

Preview Lab → · Contrast checker → · Palette generator →