#643F2C#643F2C

#643F2C is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.6% C 0.060 H 47.7°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#643F2C
RGB	rgb(100, 63, 44)
HSL	hsl(20, 39%, 28%)
HSV	hsv(20, 56%, 39%)
CMYK	cmyk(0%, 37%, 56%, 60.8%)
CIE-LAB	lab(30.51, 13.86, 18.27)
CIE-LCH	lch(30.51, 22.93, 52.81°)
OKLab	oklab(40.62% 0.0404 0.0444)
OKLCH	oklch(40.62% 0.06 47.7)
XYZ	xyz(7.4881, 6.4468, 3.2324)
Luminance	0.0645 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F2C #2C5164

analogous

#642C35 #643F2C #645B2C

triadic

#643F2C #2C643F #3F2C64

tetradic

#643F2C #35642C #2C5164 #5B2C64

square

#643F2C #35642C #2C5164 #5B2C64

split-complementary

#643F2C #2C645B #2C3564

monochromatic

#150D09 #392419 #643F2C #8E5A3F #B57656

Accessibility & contrast

On white

9.17

#643F2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#643F2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F2C

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F2C	#FFFFFF	#000000	##FFFFFF
##643F2C	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49432A

Deuteranopia (green-blind)

#524B2C

Tritanopia (blue-blind)

#6D383A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #643f2c;
/* rgb */ color: rgb(100, 63, 44);
/* oklch */ color: oklch(40.6% 0.060 47.7);

Tailwind

colors: {
  custom: {
    50: '#937465',
    500: '#643f2c',
    950: '#000000',
  },
}

SCSS

$custom: #643f2c;
$custom-light: #937465;
$custom-dark: #000000;

JSON

{
  "hex": "#643f2c",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 44
  },
  "hsl": {
    "h": 20.357,
    "s": 38.889,
    "l": 28.235
  },
  "oklch": {
    "l": 0.40615,
    "c": 0.06006,
    "h": 47.7
  },
  "luminance": 0.06446
}

Semantic roles & 50–950 ramp

primary

#643F2C

secondary

#568096

accent

#A7CF59

background

#F9F7F6

surface

#F2EDEB

border

#CCC8C6

text

#0D0805

muted

#7E7B7A

Preview Lab

Preview with #643F2C

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

Preview Lab → · Contrast checker → · Palette generator →