#643E1C#643E1C

#643E1C is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.1% C 0.072 H 60.2°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#643E1C
RGB	rgb(100, 62, 28)
HSL	hsl(28, 56%, 25%)
HSV	hsv(28, 72%, 39%)
CMYK	cmyk(0%, 38%, 72%, 60.8%)
CIE-LAB	lab(30.01, 13.14, 27.23)
CIE-LCH	lch(30.01, 30.23, 64.25°)
OKLab	oklab(40.15% 0.0356 0.0622)
OKLCH	oklch(40.15% 0.072 60.2)
XYZ	xyz(7.1883, 6.2391, 1.9241)
Luminance	0.0624 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E1C #1C4264

analogous

#641C1E #643E1C #64621C

triadic

#643E1C #1C643E #3E1C64

tetradic

#643E1C #1E641C #1C4264 #621C64

square

#643E1C #1E641C #1C4264 #621C64

split-complementary

#643E1C #1C6462 #1C1E64

monochromatic

#180F07 #34200F #643E1C #945C29 #C47937

Accessibility & contrast

On white

9.34

#643E1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#643E1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E1C

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E1C	#FFFFFF	#000000	##FFFFFF
##643E1C	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4118

Deuteranopia (green-blind)

#534A1C

Tritanopia (blue-blind)

#6D3636

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643e1c;
/* rgb */ color: rgb(100, 62, 28);
/* oklch */ color: oklch(40.1% 0.072 60.2);

Tailwind

colors: {
  custom: {
    50: '#947359',
    500: '#643e1c',
    950: '#000000',
  },
}

SCSS

$custom: #643e1c;
$custom-light: #947359;
$custom-dark: #000000;

JSON

{
  "hex": "#643e1c",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 28
  },
  "hsl": {
    "h": 28.333,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.40147,
    "c": 0.07169,
    "h": 60.2
  },
  "luminance": 0.06238
}

Semantic roles & 50–950 ramp

primary

#643E1C

secondary

#437099

accent

#98E048

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #643E1C

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

Preview Lab → · Contrast checker → · Palette generator →