#643F20#643F20

#643F20 is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.4% C 0.069 H 59.0°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#643F20
RGB	rgb(100, 63, 32)
HSL	hsl(27, 52%, 26%)
HSV	hsv(27, 68%, 39%)
CMYK	cmyk(0%, 37%, 68%, 60.8%)
CIE-LAB	lab(30.33, 12.80, 25.30)
CIE-LCH	lch(30.33, 28.36, 63.17°)
OKLab	oklab(40.41% 0.0353 0.0587)
OKLCH	oklch(40.41% 0.069 59)
XYZ	xyz(7.2943, 6.3693, 2.2115)
Luminance	0.0637 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F20 #204564

analogous

#642023 #643F20 #646120

triadic

#643F20 #20643F #3F2064

tetradic

#643F20 #236420 #204564 #612064

square

#643F20 #236420 #204564 #612064

split-complementary

#643F20 #206461 #202364

monochromatic

#170F07 #362211 #643F20 #925C2F #C1793E

Accessibility & contrast

On white

9.24

#643F20 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#643F20 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F20

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F20	#FFFFFF	#000000	##FFFFFF
##643F20	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A421D

Deuteranopia (green-blind)

#534B20

Tritanopia (blue-blind)

#6D3738

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f20;
/* rgb */ color: rgb(100, 63, 32);
/* oklch */ color: oklch(40.4% 0.069 59.0);

Tailwind

colors: {
  custom: {
    50: '#93745c',
    500: '#643f20',
    950: '#000000',
  },
}

SCSS

$custom: #643f20;
$custom-light: #93745c;
$custom-dark: #000000;

JSON

{
  "hex": "#643f20",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 32
  },
  "hsl": {
    "h": 27.353,
    "s": 51.515,
    "l": 25.882
  },
  "oklch": {
    "l": 0.4041,
    "c": 0.06853,
    "h": 59
  },
  "luminance": 0.06369
}

Semantic roles & 50–950 ramp

primary

#643F20

secondary

#487398

accent

#9ADB4D

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0D0804

muted

#7E7B79

Preview Lab

Preview with #643F20

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

Preview Lab → · Contrast checker → · Palette generator →