#643C1A#643C1A

#643C1A is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.7% C 0.074 H 58.5°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#643C1A
RGB	rgb(100, 60, 26)
HSL	hsl(28, 59%, 25%)
HSV	hsv(28, 74%, 39%)
CMYK	cmyk(0%, 40%, 74%, 60.8%)
CIE-LAB	lab(29.45, 14.24, 27.74)
CIE-LCH	lch(29.45, 31.18, 62.82°)
OKLab	oklab(39.71% 0.0386 0.0629)
OKLCH	oklch(39.71% 0.074 58.5)
XYZ	xyz(7.0584, 6.0163, 1.7666)
Luminance	0.0602 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C1A #1A4264

analogous

#641A1D #643C1A #64611A

triadic

#643C1A #1A643C #3C1A64

tetradic

#643C1A #1D641A #1A4264 #611A64

square

#643C1A #1D641A #1A4264 #611A64

split-complementary

#643C1A #1A6461 #1A1D64

monochromatic

#180F06 #331F0D #643C1A #955927 #C57633

Accessibility & contrast

On white

9.53

#643C1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#643C1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C1A

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C1A	#FFFFFF	#000000	##FFFFFF
##643C1A	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484016

Deuteranopia (green-blind)

#52491A

Tritanopia (blue-blind)

#6E3335

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643c1a;
/* rgb */ color: rgb(100, 60, 26);
/* oklch */ color: oklch(39.7% 0.074 58.5);

Tailwind

colors: {
  custom: {
    50: '#947258',
    500: '#643c1a',
    950: '#000000',
  },
}

SCSS

$custom: #643c1a;
$custom-light: #947258;
$custom-dark: #000000;

JSON

{
  "hex": "#643c1a",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 26
  },
  "hsl": {
    "h": 27.568,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.39711,
    "c": 0.0738,
    "h": 58.5
  },
  "luminance": 0.06016
}

Semantic roles & 50–950 ramp

primary

#643C1A

secondary

#40719A

accent

#9AE246

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643C1A

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

Preview Lab → · Contrast checker → · Palette generator →