#643718#643718

#643718 is a dark, moderate orange. Relative luminance 0.055; OKLCH L 38.7% C 0.078 H 52.7°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#643718
RGB	rgb(100, 55, 24)
HSL	hsl(24, 61%, 24%)
HSV	hsv(24, 76%, 39%)
CMYK	cmyk(0%, 45%, 76%, 60.8%)
CIE-LAB	lab(28.14, 17.19, 27.42)
CIE-LCH	lch(28.14, 32.37, 57.91°)
OKLab	oklab(38.69% 0.0471 0.0618)
OKLCH	oklch(38.69% 0.078 52.7)
XYZ	xyz(6.7872, 5.5084, 1.5698)
Luminance	0.0551 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643718 #184564

analogous

#64181F #643718 #645D18

triadic

#643718 #186437 #371864

tetradic

#643718 #1F6418 #184564 #5D1864

square

#643718 #1F6418 #184564 #5D1864

split-complementary

#643718 #18645D #181F64

monochromatic

#190E06 #331C0C #643718 #955224 #C76D30

Accessibility & contrast

On white

9.99

#643718 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#643718 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643718

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643718	#FFFFFF	#000000	##FFFFFF
##643718	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443C15

Deuteranopia (green-blind)

#4F4618

Tritanopia (blue-blind)

#6E2E30

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #643718;
/* rgb */ color: rgb(100, 55, 24);
/* oklch */ color: oklch(38.7% 0.078 52.7);

Tailwind

colors: {
  custom: {
    50: '#946e56',
    500: '#643718',
    950: '#000000',
  },
}

SCSS

$custom: #643718;
$custom-light: #946e56;
$custom-dark: #000000;

JSON

{
  "hex": "#643718",
  "rgb": {
    "r": 100,
    "g": 55,
    "b": 24
  },
  "hsl": {
    "h": 24.474,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.38687,
    "c": 0.07771,
    "h": 52.7
  },
  "luminance": 0.05508
}

Semantic roles & 50–950 ramp

primary

#643718

secondary

#3E749A

accent

#A3E443

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643718

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

Preview Lab → · Contrast checker → · Palette generator →