#643F1E#643F1E

#643F1E is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.4% C 0.070 H 60.4°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#643F1E
RGB	rgb(100, 63, 30)
HSL	hsl(28, 54%, 25%)
HSV	hsv(28, 70%, 39%)
CMYK	cmyk(0%, 37%, 70%, 60.8%)
CIE-LAB	lab(30.30, 12.65, 26.43)
CIE-LCH	lch(30.30, 29.30, 64.41°)
OKLab	oklab(40.38% 0.0345 0.0608)
OKLCH	oklch(40.38% 0.07 60.4)
XYZ	xyz(7.2679, 6.3587, 2.0726)
Luminance	0.0636 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F1E #1E4364

analogous

#641E20 #643F1E #64621E

triadic

#643F1E #1E643F #3F1E64

tetradic

#643F1E #20641E #1E4364 #621E64

square

#643F1E #20641E #1E4364 #621E64

split-complementary

#643F1E #1E6462 #1E2064

monochromatic

#180F07 #352110 #643F1E #935D2C #C27A3A

Accessibility & contrast

On white

9.24

#643F1E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#643F1E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F1E

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F1E	#FFFFFF	#000000	##FFFFFF
##643F1E	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)

#4A421B

Deuteranopia (green-blind)

#534B1E

Tritanopia (blue-blind)

#6D3738

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f1e;
/* rgb */ color: rgb(100, 63, 30);
/* oklch */ color: oklch(40.4% 0.070 60.4);

Tailwind

colors: {
  custom: {
    50: '#94745b',
    500: '#643f1e',
    950: '#000000',
  },
}

SCSS

$custom: #643f1e;
$custom-light: #94745b;
$custom-dark: #000000;

JSON

{
  "hex": "#643f1e",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 30
  },
  "hsl": {
    "h": 28.286,
    "s": 53.846,
    "l": 25.49
  },
  "oklch": {
    "l": 0.40382,
    "c": 0.06996,
    "h": 60.4
  },
  "luminance": 0.06358
}

Semantic roles & 50–950 ramp

primary

#643F1E

secondary

#457199

accent

#98DD4B

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #643F1E

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

Preview Lab → · Contrast checker → · Palette generator →