#643C2C#643C2C

#643C2C is a dark, moderate orange. Relative luminance 0.061; OKLCH L 40.0% C 0.062 H 42.4°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#643C2C
RGB	rgb(100, 60, 44)
HSL	hsl(17, 39%, 28%)
HSV	hsv(17, 56%, 39%)
CMYK	cmyk(0%, 40%, 56%, 60.8%)
CIE-LAB	lab(29.72, 15.72, 17.25)
CIE-LCH	lch(29.72, 23.33, 47.66°)
OKLab	oklab(40.01% 0.046 0.0421)
OKLCH	oklch(40.01% 0.062 42.4)
XYZ	xyz(7.3265, 6.1235, 3.1785)
Luminance	0.0612 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C2C #2C5464

analogous

#642C38 #643C2C #64582C

triadic

#643C2C #2C643C #3C2C64

tetradic

#643C2C #38642C #2C5464 #582C64

square

#643C2C #38642C #2C5464 #582C64

split-complementary

#643C2C #2C6458 #2C3864

monochromatic

#150D09 #392219 #643C2C #8E553F #B57156

Accessibility & contrast

On white

9.44

#643C2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#643C2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C2C

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C2C	#FFFFFF	#000000	##FFFFFF
##643C2C	1.00	9.44	2.22	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46412B

Deuteranopia (green-blind)

#50492C

Tritanopia (blue-blind)

#6D3538

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #643c2c;
/* rgb */ color: rgb(100, 60, 44);
/* oklch */ color: oklch(40.0% 0.062 42.4);

Tailwind

colors: {
  custom: {
    50: '#937265',
    500: '#643c2c',
    950: '#000000',
  },
}

SCSS

$custom: #643c2c;
$custom-light: #937265;
$custom-dark: #000000;

JSON

{
  "hex": "#643c2c",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 44
  },
  "hsl": {
    "h": 17.143,
    "s": 38.889,
    "l": 28.235
  },
  "oklch": {
    "l": 0.40005,
    "c": 0.06238,
    "h": 42.4
  },
  "luminance": 0.06123
}

Semantic roles & 50–950 ramp

primary

#643C2C

secondary

#568496

accent

#ADCF59

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0805

muted

#7E7B7A

Preview Lab

Preview with #643C2C

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

Preview Lab → · Contrast checker → · Palette generator →