#643B29#643B29

#643B29 is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.7% C 0.065 H 44.2°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#643B29
RGB	rgb(100, 59, 41)
HSL	hsl(18, 42%, 28%)
HSV	hsv(18, 59%, 39%)
CMYK	cmyk(0%, 41%, 59%, 60.8%)
CIE-LAB	lab(29.41, 16.04, 18.73)
CIE-LCH	lch(29.41, 24.66, 49.44°)
OKLab	oklab(39.75% 0.0466 0.0453)
OKLCH	oklch(39.75% 0.065 44.2)
XYZ	xyz(7.2202, 5.9980, 2.8749)
Luminance	0.0600 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B29 #295264

analogous

#642934 #643B29 #645829

triadic

#643B29 #29643B #3B2964

tetradic

#643B29 #346429 #295264 #582964

square

#643B29 #346429 #295264 #582964

split-complementary

#643B29 #296458 #293464

monochromatic

#160D09 #392117 #643B29 #8F553B #B77050

Accessibility & contrast

On white

9.55

#643B29 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#643B29 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B29

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B29	#FFFFFF	#000000	##FFFFFF
##643B29	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464027

Deuteranopia (green-blind)

#504929

Tritanopia (blue-blind)

#6D3437

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b29;
/* rgb */ color: rgb(100, 59, 41);
/* oklch */ color: oklch(39.7% 0.065 44.2);

Tailwind

colors: {
  custom: {
    50: '#937163',
    500: '#643b29',
    950: '#000000',
  },
}

SCSS

$custom: #643b29;
$custom-light: #937163;
$custom-dark: #000000;

JSON

{
  "hex": "#643b29",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 41
  },
  "hsl": {
    "h": 18.305,
    "s": 41.844,
    "l": 27.647
  },
  "oklch": {
    "l": 0.39745,
    "c": 0.06493,
    "h": 44.2
  },
  "luminance": 0.05997
}

Semantic roles & 50–950 ramp

primary

#643B29

secondary

#528296

accent

#ACD256

background

#F9F6F5

surface

#F2ECEA

border

#CCC7C6

text

#0D0705

muted

#7E7A79

Preview Lab

Preview with #643B29

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

Preview Lab → · Contrast checker → · Palette generator →