#643B28#643B28

#643B28 is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.7% C 0.066 H 45.2°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#643B28
RGB	rgb(100, 59, 40)
HSL	hsl(19, 43%, 27%)
HSV	hsv(19, 60%, 39%)
CMYK	cmyk(0%, 41%, 60%, 60.8%)
CIE-LAB	lab(29.39, 15.94, 19.34)
CIE-LCH	lch(29.39, 25.06, 50.49°)
OKLab	oklab(39.73% 0.0461 0.0465)
OKLCH	oklch(39.73% 0.066 45.2)
XYZ	xyz(7.2030, 5.9911, 2.7841)
Luminance	0.0599 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B28 #285164

analogous

#642833 #643B28 #645928

triadic

#643B28 #28643B #3B2864

tetradic

#643B28 #336428 #285164 #592864

square

#643B28 #336428 #285164 #592864

split-complementary

#643B28 #286459 #283364

monochromatic

#160D09 #382117 #643B28 #905539 #B8704E

Accessibility & contrast

On white

9.55

#643B28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#643B28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B28

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B28	#FFFFFF	#000000	##FFFFFF
##643B28	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)

#464026

Deuteranopia (green-blind)

#504928

Tritanopia (blue-blind)

#6D3436

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b28;
/* rgb */ color: rgb(100, 59, 40);
/* oklch */ color: oklch(39.7% 0.066 45.2);

Tailwind

colors: {
  custom: {
    50: '#937162',
    500: '#643b28',
    950: '#000000',
  },
}

SCSS

$custom: #643b28;
$custom-light: #937162;
$custom-dark: #000000;

JSON

{
  "hex": "#643b28",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 40
  },
  "hsl": {
    "h": 19,
    "s": 42.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.39726,
    "c": 0.06551,
    "h": 45.2
  },
  "luminance": 0.0599
}

Semantic roles & 50–950 ramp

primary

#643B28

secondary

#518197

accent

#ABD355

background

#F9F6F5

surface

#F2ECEA

border

#CCC7C6

text

#0D0705

muted

#7E7A79

Preview Lab

Preview with #643B28

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

Preview Lab → · Contrast checker → · Palette generator →