#643C29#643C29

#643C29 is a dark, moderate orange. Relative luminance 0.061; OKLCH L 39.9% C 0.064 H 45.8°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#643C29
RGB	rgb(100, 60, 41)
HSL	hsl(19, 42%, 28%)
HSV	hsv(19, 59%, 39%)
CMYK	cmyk(0%, 40%, 59%, 60.8%)
CIE-LAB	lab(29.67, 15.42, 19.06)
CIE-LCH	lch(29.67, 24.52, 51.03°)
OKLab	oklab(39.95% 0.0447 0.046)
OKLCH	oklch(39.95% 0.064 45.8)
XYZ	xyz(7.2721, 6.1018, 2.8922)
Luminance	0.0610 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C29 #295164

analogous

#642933 #643C29 #645929

triadic

#643C29 #29643C #3C2964

tetradic

#643C29 #336429 #295164 #592964

square

#643C29 #336429 #295164 #592964

split-complementary

#643C29 #296459 #293364

monochromatic

#160D09 #392217 #643C29 #8F563B #B77150

Accessibility & contrast

On white

9.46

#643C29 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#643C29 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C29

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C29	#FFFFFF	#000000	##FFFFFF
##643C29	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474127

Deuteranopia (green-blind)

#504929

Tritanopia (blue-blind)

#6D3537

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #643c29;
/* rgb */ color: rgb(100, 60, 41);
/* oklch */ color: oklch(39.9% 0.064 45.8);

Tailwind

colors: {
  custom: {
    50: '#937263',
    500: '#643c29',
    950: '#000000',
  },
}

SCSS

$custom: #643c29;
$custom-light: #937263;
$custom-dark: #000000;

JSON

{
  "hex": "#643c29",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 41
  },
  "hsl": {
    "h": 19.322,
    "s": 41.844,
    "l": 27.647
  },
  "oklch": {
    "l": 0.39946,
    "c": 0.06413,
    "h": 45.8
  },
  "luminance": 0.06101
}

Semantic roles & 50–950 ramp

primary

#643C29

secondary

#528196

accent

#AAD256

background

#F9F6F5

surface

#F2ECEA

border

#CCC7C6

text

#0D0805

muted

#7E7B79

Preview Lab

Preview with #643C29

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

Preview Lab → · Contrast checker → · Palette generator →