#643F17#643F17

#643F17 is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.3% C 0.075 H 64.6°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#643F17
RGB	rgb(100, 63, 23)
HSL	hsl(31, 63%, 24%)
HSV	hsv(31, 77%, 39%)
CMYK	cmyk(0%, 37%, 77%, 60.8%)
CIE-LAB	lab(30.22, 12.21, 30.17)
CIE-LCH	lch(30.22, 32.55, 67.97°)
OKLab	oklab(40.3% 0.032 0.0675)
OKLCH	oklch(40.3% 0.075 64.6)
XYZ	xyz(7.1882, 6.3269, 1.6531)
Luminance	0.0633 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F17 #173C64

analogous

#641917 #643F17 #636417

triadic

#643F17 #17643F #3F1764

tetradic

#643F17 #176419 #173C64 #641763

square

#643F17 #176419 #173C64 #641763

split-complementary

#643F17 #176364 #191764

monochromatic

#191006 #32200C #643F17 #965E22 #C87E2E

Accessibility & contrast

On white

9.27

#643F17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#643F17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F17

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F17	#FFFFFF	#000000	##FFFFFF
##643F17	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4212

Deuteranopia (green-blind)

#544B18

Tritanopia (blue-blind)

#6E3637

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f17;
/* rgb */ color: rgb(100, 63, 23);
/* oklch */ color: oklch(40.3% 0.075 64.6);

Tailwind

colors: {
  custom: {
    50: '#947456',
    500: '#643f17',
    950: '#000000',
  },
}

SCSS

$custom: #643f17;
$custom-light: #947456;
$custom-dark: #000000;

JSON

{
  "hex": "#643f17",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 23
  },
  "hsl": {
    "h": 31.169,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.40297,
    "c": 0.07469,
    "h": 64.6
  },
  "luminance": 0.06326
}

Semantic roles & 50–950 ramp

primary

#643F17

secondary

#3C6A9A

accent

#91E642

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #643F17

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

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