#643F2A#643F2A

#643F2A is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.6% C 0.061 H 49.9°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#643F2A
RGB	rgb(100, 63, 42)
HSL	hsl(22, 41%, 28%)
HSV	hsv(22, 58%, 39%)
CMYK	cmyk(0%, 37%, 58%, 60.8%)
CIE-LAB	lab(30.48, 13.66, 19.47)
CIE-LCH	lch(30.48, 23.78, 54.94°)
OKLab	oklab(40.58% 0.0395 0.047)
OKLCH	oklch(40.58% 0.061 49.9)
XYZ	xyz(7.4514, 6.4321, 3.0391)
Luminance	0.0643 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F2A #2A4F64

analogous

#642A32 #643F2A #645C2A

triadic

#643F2A #2A643F #3F2A64

tetradic

#643F2A #32642A #2A4F64 #5C2A64

square

#643F2A #32642A #2A4F64 #5C2A64

split-complementary

#643F2A #2A645C #2A3264

monochromatic

#160E09 #392418 #643F2A #8F5A3C #B67652

Accessibility & contrast

On white

9.18

#643F2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#643F2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F2A

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F2A	#FFFFFF	#000000	##FFFFFF
##643F2A	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494328

Deuteranopia (green-blind)

#524B2A

Tritanopia (blue-blind)

#6D383A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #643f2a;
/* rgb */ color: rgb(100, 63, 42);
/* oklch */ color: oklch(40.6% 0.061 49.9);

Tailwind

colors: {
  custom: {
    50: '#937464',
    500: '#643f2a',
    950: '#000000',
  },
}

SCSS

$custom: #643f2a;
$custom-light: #937464;
$custom-dark: #000000;

JSON

{
  "hex": "#643f2a",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 42
  },
  "hsl": {
    "h": 21.724,
    "s": 40.845,
    "l": 27.843
  },
  "oklch": {
    "l": 0.40577,
    "c": 0.06141,
    "h": 49.9
  },
  "luminance": 0.06432
}

Semantic roles & 50–950 ramp

primary

#643F2A

secondary

#537E96

accent

#A5D157

background

#F9F7F5

surface

#F2EDEA

border

#CCC8C6

text

#0D0805

muted

#7E7B79

Preview Lab

Preview with #643F2A

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

Preview Lab → · Contrast checker → · Palette generator →