#731F15#731F15

#731F15 is a dark, moderate red. Relative luminance 0.047; OKLCH L 37.4% C 0.119 H 30.3°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#731F15
RGB	rgb(115, 31, 21)
HSL	hsl(6, 69%, 27%)
HSV	hsv(6, 82%, 45%)
CMYK	cmyk(0%, 73%, 81.7%, 54.9%)
CIE-LAB	lab(25.80, 36.13, 27.48)
CIE-LCH	lch(25.80, 45.39, 37.25°)
OKLab	oklab(37.42% 0.103 0.0601)
OKLCH	oklch(37.42% 0.119 30.3)
XYZ	xyz(7.6965, 4.6801, 1.2074)
Luminance	0.0468 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731F15 #156973

analogous

#73153A #731F15 #734E15

triadic

#731F15 #15731F #1F1573

tetradic

#731F15 #3A7315 #156973 #4E1573

square

#731F15 #3A7315 #156973 #4E1573

split-complementary

#731F15 #15734E #153A73

monochromatic

#1A0705 #3F110C #731F15 #A72D1E #D83D2A

Accessibility & contrast

On white

10.85

#731F15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#731F15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731F15

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731F15	#FFFFFF	#000000	##FFFFFF
##731F15	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383113

Deuteranopia (green-blind)

#4C4412

Tritanopia (blue-blind)

#7F011D

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #731f15;
/* rgb */ color: rgb(115, 31, 21);
/* oklch */ color: oklch(37.4% 0.119 30.3);

Tailwind

colors: {
  custom: {
    50: '#a36153',
    500: '#731f15',
    950: '#000000',
  },
}

SCSS

$custom: #731f15;
$custom-light: #a36153;
$custom-dark: #000000;

JSON

{
  "hex": "#731f15",
  "rgb": {
    "r": 115,
    "g": 31,
    "b": 21
  },
  "hsl": {
    "h": 6.383,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.37421,
    "c": 0.11926,
    "h": 30.3
  },
  "luminance": 0.04679
}

Semantic roles & 50–950 ramp

primary

#731F15

secondary

#3B9DA9

accent

#D9EC3C

background

#FAF5F4

surface

#F4EAE7

border

#CEC6C3

text

#100502

muted

#7F7978

Preview Lab

Preview with #731F15

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

Preview Lab → · Contrast checker → · Palette generator →