#643B2A#643B2A

#643B2A is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.8% C 0.064 H 43.1°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#643B2A
RGB	rgb(100, 59, 42)
HSL	hsl(18, 41%, 28%)
HSV	hsv(18, 58%, 39%)
CMYK	cmyk(0%, 41%, 58%, 60.8%)
CIE-LAB	lab(29.43, 16.13, 18.13)
CIE-LCH	lch(29.43, 24.27, 48.34°)
OKLab	oklab(39.76% 0.047 0.044)
OKLCH	oklch(39.76% 0.064 43.1)
XYZ	xyz(7.2379, 6.0051, 2.9679)
Luminance	0.0600 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B2A #2A5364

analogous

#642A36 #643B2A #64582A

triadic

#643B2A #2A643B #3B2A64

tetradic

#643B2A #36642A #2A5364 #582A64

square

#643B2A #36642A #2A5364 #582A64

split-complementary

#643B2A #2A6458 #2A3664

monochromatic

#160D09 #392218 #643B2A #8F543C #B66F52

Accessibility & contrast

On white

9.54

#643B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#643B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B2A

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B2A	#FFFFFF	#000000	##FFFFFF
##643B2A	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464029

Deuteranopia (green-blind)

#4F492A

Tritanopia (blue-blind)

#6D3437

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b2a;
/* rgb */ color: rgb(100, 59, 42);
/* oklch */ color: oklch(39.8% 0.064 43.1);

Tailwind

colors: {
  custom: {
    50: '#937163',
    500: '#643b2a',
    950: '#000000',
  },
}

SCSS

$custom: #643b2a;
$custom-light: #937163;
$custom-dark: #000000;

JSON

{
  "hex": "#643b2a",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 42
  },
  "hsl": {
    "h": 17.586,
    "s": 40.845,
    "l": 27.843
  },
  "oklch": {
    "l": 0.39764,
    "c": 0.06437,
    "h": 43.1
  },
  "luminance": 0.06004
}

Semantic roles & 50–950 ramp

primary

#643B2A

secondary

#538396

accent

#ADD157

background

#F9F6F5

surface

#F2ECEA

border

#CCC7C6

text

#0D0705

muted

#7E7A79

Preview Lab

Preview with #643B2A

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

Preview Lab → · Contrast checker → · Palette generator →