#643818#643818

#643818 is a dark, moderate orange. Relative luminance 0.056; OKLCH L 38.9% C 0.077 H 54.1°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#643818
RGB	rgb(100, 56, 24)
HSL	hsl(25, 61%, 24%)
HSV	hsv(25, 76%, 39%)
CMYK	cmyk(0%, 44%, 76%, 60.8%)
CIE-LAB	lab(28.39, 16.58, 27.69)
CIE-LCH	lch(28.39, 32.28, 59.09°)
OKLab	oklab(38.88% 0.0452 0.0624)
OKLCH	oklch(38.88% 0.077 54.1)
XYZ	xyz(6.8351, 5.6043, 1.5858)
Luminance	0.0560 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643818 #184464

analogous

#64181E #643818 #645E18

triadic

#643818 #186438 #381864

tetradic

#643818 #1E6418 #184464 #5E1864

square

#643818 #1E6418 #184464 #5E1864

split-complementary

#643818 #18645E #181E64

monochromatic

#190E06 #331C0C #643818 #955424 #C76F30

Accessibility & contrast

On white

9.90

#643818 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#643818 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643818

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643818	#FFFFFF	#000000	##FFFFFF
##643818	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453D14

Deuteranopia (green-blind)

#4F4718

Tritanopia (blue-blind)

#6E2F31

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #643818;
/* rgb */ color: rgb(100, 56, 24);
/* oklch */ color: oklch(38.9% 0.077 54.1);

Tailwind

colors: {
  custom: {
    50: '#946f56',
    500: '#643818',
    950: '#000000',
  },
}

SCSS

$custom: #643818;
$custom-light: #946f56;
$custom-dark: #000000;

JSON

{
  "hex": "#643818",
  "rgb": {
    "r": 100,
    "g": 56,
    "b": 24
  },
  "hsl": {
    "h": 25.263,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.38884,
    "c": 0.07707,
    "h": 54.1
  },
  "luminance": 0.05604
}

Semantic roles & 50–950 ramp

primary

#643818

secondary

#3E739A

accent

#A1E443

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643818

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

Preview Lab → · Contrast checker → · Palette generator →