#643B2C#643B2C

#643B2C is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.8% C 0.063 H 40.8°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#643B2C
RGB	rgb(100, 59, 44)
HSL	hsl(16, 39%, 28%)
HSV	hsv(16, 56%, 39%)
CMYK	cmyk(0%, 41%, 56%, 60.8%)
CIE-LAB	lab(29.46, 16.33, 16.91)
CIE-LCH	lch(29.46, 23.51, 46.01°)
OKLab	oklab(39.81% 0.0479 0.0413)
OKLCH	oklch(39.81% 0.063 40.8)
XYZ	xyz(7.2746, 6.0198, 3.1612)
Luminance	0.0602 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B2C #2C5564

analogous

#642C39 #643B2C #64572C

triadic

#643B2C #2C643B #3B2C64

tetradic

#643B2C #39642C #2C5564 #572C64

square

#643B2C #39642C #2C5564 #572C64

split-complementary

#643B2C #2C6457 #2C3964

monochromatic

#150D09 #392219 #643B2C #8E543F #B56F56

Accessibility & contrast

On white

9.53

#643B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#643B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B2C

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B2C	#FFFFFF	#000000	##FFFFFF
##643B2C	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45402B

Deuteranopia (green-blind)

#4F492C

Tritanopia (blue-blind)

#6D3437

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b2c;
/* rgb */ color: rgb(100, 59, 44);
/* oklch */ color: oklch(39.8% 0.063 40.8);

Tailwind

colors: {
  custom: {
    50: '#937165',
    500: '#643b2c',
    950: '#000000',
  },
}

SCSS

$custom: #643b2c;
$custom-light: #937165;
$custom-dark: #000000;

JSON

{
  "hex": "#643b2c",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 44
  },
  "hsl": {
    "h": 16.071,
    "s": 38.889,
    "l": 28.235
  },
  "oklch": {
    "l": 0.39805,
    "c": 0.06327,
    "h": 40.8
  },
  "luminance": 0.06019
}

Semantic roles & 50–950 ramp

primary

#643B2C

secondary

#568596

accent

#AFCF59

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0705

muted

#7E7A7A

Preview Lab

Preview with #643B2C

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

Preview Lab → · Contrast checker → · Palette generator →