#643B18#643B18

#643B18 is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.5% C 0.075 H 58.2°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#643B18
RGB	rgb(100, 59, 24)
HSL	hsl(28, 61%, 24%)
HSV	hsv(28, 76%, 39%)
CMYK	cmyk(0%, 41%, 76%, 60.8%)
CIE-LAB	lab(29.17, 14.74, 28.53)
CIE-LCH	lch(29.17, 32.11, 62.68°)
OKLab	oklab(39.48% 0.0397 0.0642)
OKLCH	oklch(39.48% 0.075 58.2)
XYZ	xyz(6.9849, 5.9039, 1.6357)
Luminance	0.0590 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B18 #184164

analogous

#64181B #643B18 #646118

triadic

#643B18 #18643B #3B1864

tetradic

#643B18 #1B6418 #184164 #611864

square

#643B18 #1B6418 #184164 #611864

split-complementary

#643B18 #186461 #181B64

monochromatic

#190F06 #331E0C #643B18 #955824 #C77530

Accessibility & contrast

On white

9.63

#643B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#643B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B18

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B18	#FFFFFF	#000000	##FFFFFF
##643B18	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)

#473F14

Deuteranopia (green-blind)

#514818

Tritanopia (blue-blind)

#6E3233

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b18;
/* rgb */ color: rgb(100, 59, 24);
/* oklch */ color: oklch(39.5% 0.075 58.2);

Tailwind

colors: {
  custom: {
    50: '#947157',
    500: '#643b18',
    950: '#000000',
  },
}

SCSS

$custom: #643b18;
$custom-light: #947157;
$custom-dark: #000000;

JSON

{
  "hex": "#643b18",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 24
  },
  "hsl": {
    "h": 27.632,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.39484,
    "c": 0.07549,
    "h": 58.2
  },
  "luminance": 0.05903
}

Semantic roles & 50–950 ramp

primary

#643B18

secondary

#3E709A

accent

#9AE443

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643B18

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

Preview Lab → · Contrast checker → · Palette generator →