#643E32#643E32

#643E32 is a dark, muted red. Relative luminance 0.064; OKLCH L 40.5% C 0.057 H 38.3°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#643E32
RGB	rgb(100, 62, 50)
HSL	hsl(14, 33%, 29%)
HSV	hsv(14, 50%, 39%)
CMYK	cmyk(0%, 38%, 50%, 60.8%)
CIE-LAB	lab(30.36, 15.13, 14.29)
CIE-LCH	lch(30.36, 20.81, 43.36°)
OKLab	oklab(40.54% 0.045 0.0355)
OKLCH	oklch(40.54% 0.057 38.3)
XYZ	xyz(7.5543, 6.3855, 3.8516)
Luminance	0.0639 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E32 #325864

analogous

#64323F #643E32 #645732

triadic

#643E32 #32643E #3E3264

tetradic

#643E32 #3F6432 #325864 #573264

square

#643E32 #3F6432 #325864 #573264

split-complementary

#643E32 #326457 #323F64

monochromatic

#140D0A #3B251E #643E32 #8D5746 #B07461

Accessibility & contrast

On white

9.22

#643E32 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#643E32 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E32

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E32	#FFFFFF	#000000	##FFFFFF
##643E32	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474331

Deuteranopia (green-blind)

#504B32

Tritanopia (blue-blind)

#6C383B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643e32;
/* rgb */ color: rgb(100, 62, 50);
/* oklch */ color: oklch(40.5% 0.057 38.3);

Tailwind

colors: {
  custom: {
    50: '#92736a',
    500: '#643e32',
    950: '#000000',
  },
}

SCSS

$custom: #643e32;
$custom-light: #92736a;
$custom-dark: #000000;

JSON

{
  "hex": "#643e32",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 50
  },
  "hsl": {
    "h": 14.4,
    "s": 33.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.40539,
    "c": 0.05735,
    "h": 38.3
  },
  "luminance": 0.06385
}

Semantic roles & 50–950 ramp

primary

#643E32

secondary

#5D8895

accent

#B0C95E

background

#F9F7F6

surface

#F1EDEB

border

#CBC8C6

text

#0D0806

muted

#7E7B7A

Preview Lab

Preview with #643E32

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

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