#643A32#643A32

#643A32 is a dark, moderate red. Relative luminance 0.060; OKLCH L 39.7% C 0.062 H 31.6°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#643A32
RGB	rgb(100, 58, 50)
HSL	hsl(10, 33%, 29%)
HSV	hsv(10, 50%, 39%)
CMYK	cmyk(0%, 42%, 50%, 60.8%)
CIE-LAB	lab(29.33, 17.59, 12.90)
CIE-LCH	lch(29.33, 21.81, 36.25°)
OKLab	oklab(39.74% 0.0525 0.0323)
OKLCH	oklch(39.74% 0.062 31.6)
XYZ	xyz(7.3447, 5.9664, 3.7818)
Luminance	0.0597 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A32 #325C64

analogous

#643243 #643A32 #645332

triadic

#643A32 #32643A #3A3264

tetradic

#643A32 #436432 #325C64 #533264

square

#643A32 #436432 #325C64 #533264

split-complementary

#643A32 #326453 #324364

monochromatic

#140C0A #3B221E #643A32 #8D5246 #B06D61

Accessibility & contrast

On white

9.58

#643A32 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#643A32 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A32

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A32	#FFFFFF	#000000	##FFFFFF
##643A32	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444031

Deuteranopia (green-blind)

#4E4831

Tritanopia (blue-blind)

#6C3438

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643a32;
/* rgb */ color: rgb(100, 58, 50);
/* oklch */ color: oklch(39.7% 0.062 31.6);

Tailwind

colors: {
  custom: {
    50: '#927069',
    500: '#643a32',
    950: '#000000',
  },
}

SCSS

$custom: #643a32;
$custom-light: #927069;
$custom-dark: #000000;

JSON

{
  "hex": "#643a32",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 50
  },
  "hsl": {
    "h": 9.6,
    "s": 33.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.39741,
    "c": 0.06163,
    "h": 31.6
  },
  "luminance": 0.05966
}

Semantic roles & 50–950 ramp

primary

#643A32

secondary

#5D8C95

accent

#B8C95E

background

#F9F6F6

surface

#F1ECEB

border

#CBC7C6

text

#0D0706

muted

#7E7A7A

Preview Lab

Preview with #643A32

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

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