#643E28#643E28

#643E28 is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.3% C 0.063 H 50.3°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#643E28
RGB	rgb(100, 62, 40)
HSL	hsl(22, 43%, 27%)
HSV	hsv(22, 60%, 39%)
CMYK	cmyk(0%, 38%, 60%, 60.8%)
CIE-LAB	lab(30.18, 14.09, 20.32)
CIE-LCH	lch(30.18, 24.73, 55.27°)
OKLab	oklab(40.33% 0.0405 0.0487)
OKLCH	oklch(40.33% 0.063 50.3)
XYZ	xyz(7.3616, 6.3084, 2.8370)
Luminance	0.0631 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E28 #284E64

analogous

#642830 #643E28 #645C28

triadic

#643E28 #28643E #3E2864

tetradic

#643E28 #306428 #284E64 #5C2864

square

#643E28 #306428 #284E64 #5C2864

split-complementary

#643E28 #28645C #283064

monochromatic

#160E09 #382317 #643E28 #905939 #B8754E

Accessibility & contrast

On white

9.29

#643E28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#643E28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E28

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E28	#FFFFFF	#000000	##FFFFFF
##643E28	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494226

Deuteranopia (green-blind)

#524A28

Tritanopia (blue-blind)

#6D3739

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643e28;
/* rgb */ color: rgb(100, 62, 40);
/* oklch */ color: oklch(40.3% 0.063 50.3);

Tailwind

colors: {
  custom: {
    50: '#937362',
    500: '#643e28',
    950: '#000000',
  },
}

SCSS

$custom: #643e28;
$custom-light: #937362;
$custom-dark: #000000;

JSON

{
  "hex": "#643e28",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 40
  },
  "hsl": {
    "h": 22,
    "s": 42.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.40334,
    "c": 0.06338,
    "h": 50.3
  },
  "luminance": 0.06308
}

Semantic roles & 50–950 ramp

primary

#643E28

secondary

#517D97

accent

#A5D355

background

#F9F7F5

surface

#F2EDEA

border

#CCC8C6

text

#0D0805

muted

#7E7B79

Preview Lab

Preview with #643E28

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

Preview Lab → · Contrast checker → · Palette generator →