#731B2F#731B2F

#731B2F is a dark, vivid red. Relative luminance 0.046; OKLCH L 37.5% C 0.121 H 12.3°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#731B2F
RGB	rgb(115, 27, 47)
HSL	hsl(346, 62%, 28%)
HSV	hsv(346, 77%, 45%)
CMYK	cmyk(0%, 76.5%, 59.1%, 54.9%)
CIE-LAB	lab(25.67, 39.30, 10.36)
CIE-LCH	lch(25.67, 40.64, 14.77°)
OKLab	oklab(37.47% 0.1187 0.0259)
OKLCH	oklch(37.47% 0.121 12.3)
XYZ	xyz(7.9760, 4.6351, 3.1634)
Luminance	0.0463 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731B2F #1B735F

analogous

#731B5B #731B2F #73331B

triadic

#731B2F #2F731B #1B2F73

tetradic

#731B2F #5B731B #1B735F #331B73

square

#731B2F #5B731B #1B735F #331B73

split-complementary

#731B2F #1B7333 #1B5B73

monochromatic

#19060A #410F1B #731B2F #A52743 #D0385B

Accessibility & contrast

On white

10.90

#731B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#731B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731B2F

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731B2F	#FFFFFF	#000000	##FFFFFF
##731B2F	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32312F

Deuteranopia (green-blind)

#49432D

Tritanopia (blue-blind)

#7E0323

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #731b2f;
/* rgb */ color: rgb(115, 27, 47);
/* oklch */ color: oklch(37.5% 0.121 12.3);

Tailwind

colors: {
  custom: {
    50: '#a15f67',
    500: '#731b2f',
    950: '#000000',
  },
}

SCSS

$custom: #731b2f;
$custom-light: #a15f67;
$custom-dark: #000000;

JSON

{
  "hex": "#731b2f",
  "rgb": {
    "r": 115,
    "g": 27,
    "b": 47
  },
  "hsl": {
    "h": 346.364,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.37466,
    "c": 0.12148,
    "h": 12.3
  },
  "luminance": 0.04634
}

Semantic roles & 50–950 ramp

primary

#731B2F

secondary

#42A891

accent

#E5C043

background

#FAF5F6

surface

#F4EAEB

border

#CEC6C6

text

#100506

muted

#7F797A

Preview Lab

Preview with #731B2F

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

Preview Lab → · Contrast checker → · Palette generator →