#643E29#643E29

#643E29 is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.4% C 0.063 H 49.2°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#643E29
RGB	rgb(100, 62, 41)
HSL	hsl(21, 42%, 28%)
HSV	hsv(21, 59%, 39%)
CMYK	cmyk(0%, 38%, 59%, 60.8%)
CIE-LAB	lab(30.19, 14.18, 19.73)
CIE-LCH	lch(30.19, 24.30, 54.28°)
OKLab	oklab(40.35% 0.041 0.0475)
OKLCH	oklch(40.35% 0.063 49.2)
XYZ	xyz(7.3789, 6.3153, 2.9277)
Luminance	0.0631 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E29 #294F64

analogous

#642931 #643E29 #645B29

triadic

#643E29 #29643E #3E2964

tetradic

#643E29 #316429 #294F64 #5B2964

square

#643E29 #316429 #294F64 #5B2964

split-complementary

#643E29 #29645B #293164

monochromatic

#160D09 #392317 #643E29 #8F593B #B77550

Accessibility & contrast

On white

9.28

#643E29 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#643E29 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E29

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E29	#FFFFFF	#000000	##FFFFFF
##643E29	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484227

Deuteranopia (green-blind)

#514A29

Tritanopia (blue-blind)

#6D3739

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643e29;
/* rgb */ color: rgb(100, 62, 41);
/* oklch */ color: oklch(40.4% 0.063 49.2);

Tailwind

colors: {
  custom: {
    50: '#937363',
    500: '#643e29',
    950: '#000000',
  },
}

SCSS

$custom: #643e29;
$custom-light: #937363;
$custom-dark: #000000;

JSON

{
  "hex": "#643e29",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 41
  },
  "hsl": {
    "h": 21.356,
    "s": 41.844,
    "l": 27.647
  },
  "oklch": {
    "l": 0.40352,
    "c": 0.06271,
    "h": 49.2
  },
  "luminance": 0.06315
}

Semantic roles & 50–950 ramp

primary

#643E29

secondary

#527E96

accent

#A6D256

background

#F9F7F5

surface

#F2EDEA

border

#CCC8C6

text

#0D0805

muted

#7E7B79

Preview Lab

Preview with #643E29

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

Preview Lab → · Contrast checker → · Palette generator →