#643A18#643A18

#643A18 is a dark, moderate orange. Relative luminance 0.058; OKLCH L 39.3% C 0.076 H 56.8°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#643A18
RGB	rgb(100, 58, 24)
HSL	hsl(27, 61%, 24%)
HSV	hsv(27, 76%, 39%)
CMYK	cmyk(0%, 42%, 76%, 60.8%)
CIE-LAB	lab(28.91, 15.36, 28.25)
CIE-LCH	lch(28.91, 32.15, 61.47°)
OKLab	oklab(39.28% 0.0416 0.0636)
OKLCH	oklch(39.28% 0.076 56.8)
XYZ	xyz(6.9340, 5.8021, 1.6187)
Luminance	0.0580 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A18 #184264

analogous

#64181C #643A18 #646018

triadic

#643A18 #18643A #3A1864

tetradic

#643A18 #1C6418 #184264 #601864

square

#643A18 #1C6418 #184264 #601864

split-complementary

#643A18 #186460 #181C64

monochromatic

#190E06 #331D0C #643A18 #955724 #C77330

Accessibility & contrast

On white

9.72

#643A18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#643A18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A18

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A18	#FFFFFF	#000000	##FFFFFF
##643A18	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463E14

Deuteranopia (green-blind)

#504818

Tritanopia (blue-blind)

#6E3133

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #643a18;
/* rgb */ color: rgb(100, 58, 24);
/* oklch */ color: oklch(39.3% 0.076 56.8);

Tailwind

colors: {
  custom: {
    50: '#947056',
    500: '#643a18',
    950: '#000000',
  },
}

SCSS

$custom: #643a18;
$custom-light: #947056;
$custom-dark: #000000;

JSON

{
  "hex": "#643a18",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 24
  },
  "hsl": {
    "h": 26.842,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.39282,
    "c": 0.07597,
    "h": 56.8
  },
  "luminance": 0.05801
}

Semantic roles & 50–950 ramp

primary

#643A18

secondary

#3E719A

accent

#9CE443

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643A18

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

Preview Lab → · Contrast checker → · Palette generator →