#643B17#643B17

#643B17 is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.5% C 0.076 H 58.8°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#643B17
RGB	rgb(100, 59, 23)
HSL	hsl(28, 63%, 24%)
HSV	hsv(28, 77%, 39%)
CMYK	cmyk(0%, 41%, 77%, 60.8%)
CIE-LAB	lab(29.16, 14.68, 29.06)
CIE-LCH	lch(29.16, 32.56, 63.19°)
OKLab	oklab(39.47% 0.0394 0.0651)
OKLCH	oklch(39.47% 0.076 58.8)
XYZ	xyz(6.9747, 5.8998, 1.5819)
Luminance	0.0590 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B17 #174064

analogous

#64171A #643B17 #646217

triadic

#643B17 #17643B #3B1764

tetradic

#643B17 #1A6417 #174064 #621764

square

#643B17 #1A6417 #174064 #621764

split-complementary

#643B17 #176462 #171A64

monochromatic

#190F06 #321E0C #643B17 #965822 #C8762E

Accessibility & contrast

On white

9.63

#643B17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#643B17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B17

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B17	#FFFFFF	#000000	##FFFFFF
##643B17	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F13

Deuteranopia (green-blind)

#514817

Tritanopia (blue-blind)

#6E3233

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b17;
/* rgb */ color: rgb(100, 59, 23);
/* oklch */ color: oklch(39.5% 0.076 58.8);

Tailwind

colors: {
  custom: {
    50: '#947156',
    500: '#643b17',
    950: '#000000',
  },
}

SCSS

$custom: #643b17;
$custom-light: #947156;
$custom-dark: #000000;

JSON

{
  "hex": "#643b17",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 23
  },
  "hsl": {
    "h": 28.052,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.39472,
    "c": 0.07608,
    "h": 58.8
  },
  "luminance": 0.05899
}

Semantic roles & 50–950 ramp

primary

#643B17

secondary

#3C6E9A

accent

#99E642

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643B17

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

Preview Lab → · Contrast checker → · Palette generator →