#643F22#643F22

#643F22 is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.4% C 0.067 H 57.4°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#643F22
RGB	rgb(100, 63, 34)
HSL	hsl(26, 49%, 26%)
HSV	hsv(26, 66%, 39%)
CMYK	cmyk(0%, 37%, 66%, 60.8%)
CIE-LAB	lab(30.35, 12.96, 24.16)
CIE-LCH	lch(30.35, 27.42, 61.80°)
OKLab	oklab(40.44% 0.0361 0.0565)
OKLCH	oklch(40.44% 0.067 57.4)
XYZ	xyz(7.3223, 6.3805, 2.3590)
Luminance	0.0638 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F22 #224764

analogous

#642226 #643F22 #646022

triadic

#643F22 #22643F #3F2264

tetradic

#643F22 #266422 #224764 #602264

square

#643F22 #266422 #224764 #602264

split-complementary

#643F22 #226460 #222664

monochromatic

#170E08 #362212 #643F22 #925C32 #BF7942

Accessibility & contrast

On white

9.23

#643F22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#643F22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F22

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F22	#FFFFFF	#000000	##FFFFFF
##643F22	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A421F

Deuteranopia (green-blind)

#534B22

Tritanopia (blue-blind)

#6D3738

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f22;
/* rgb */ color: rgb(100, 63, 34);
/* oklch */ color: oklch(40.4% 0.067 57.4);

Tailwind

colors: {
  custom: {
    50: '#93745e',
    500: '#643f22',
    950: '#000000',
  },
}

SCSS

$custom: #643f22;
$custom-light: #93745e;
$custom-dark: #000000;

JSON

{
  "hex": "#643f22",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 34
  },
  "hsl": {
    "h": 26.364,
    "s": 49.254,
    "l": 26.275
  },
  "oklch": {
    "l": 0.4044,
    "c": 0.06709,
    "h": 57.4
  },
  "luminance": 0.0638
}

Semantic roles & 50–950 ramp

primary

#643F22

secondary

#4A7698

accent

#9CD94F

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0D0804

muted

#7E7B79

Preview Lab

Preview with #643F22

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

Preview Lab → · Contrast checker → · Palette generator →