#643A2B#643A2B

#643A2B is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.6% C 0.065 H 40.3°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#643A2B
RGB	rgb(100, 58, 43)
HSL	hsl(16, 40%, 28%)
HSV	hsv(16, 57%, 39%)
CMYK	cmyk(0%, 42%, 57%, 60.8%)
CIE-LAB	lab(29.19, 16.85, 17.19)
CIE-LCH	lch(29.19, 24.07, 45.58°)
OKLab	oklab(39.59% 0.0493 0.0419)
OKLCH	oklch(39.59% 0.065 40.3)
XYZ	xyz(7.2051, 5.9105, 3.0464)
Luminance	0.0591 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A2B #2B5564

analogous

#642B39 #643A2B #64562B

triadic

#643A2B #2B643A #3A2B64

tetradic

#643A2B #39642B #2B5564 #562B64

square

#643A2B #39642B #2B5564 #562B64

split-complementary

#643A2B #2B6456 #2B3964

monochromatic

#150C09 #392119 #643A2B #8F533D #B56E54

Accessibility & contrast

On white

9.62

#643A2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#643A2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A2B

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A2B	#FFFFFF	#000000	##FFFFFF
##643A2B	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453F2A

Deuteranopia (green-blind)

#4F482B

Tritanopia (blue-blind)

#6D3336

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643a2b;
/* rgb */ color: rgb(100, 58, 43);
/* oklch */ color: oklch(39.6% 0.065 40.3);

Tailwind

colors: {
  custom: {
    50: '#937064',
    500: '#643a2b',
    950: '#000000',
  },
}

SCSS

$custom: #643a2b;
$custom-light: #937064;
$custom-dark: #000000;

JSON

{
  "hex": "#643a2b",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 43
  },
  "hsl": {
    "h": 15.789,
    "s": 39.86,
    "l": 28.039
  },
  "oklch": {
    "l": 0.39586,
    "c": 0.06472,
    "h": 40.3
  },
  "luminance": 0.0591
}

Semantic roles & 50–950 ramp

primary

#643A2B

secondary

#558596

accent

#B0D058

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0705

muted

#7E7A7A

Preview Lab

Preview with #643A2B

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

Preview Lab → · Contrast checker → · Palette generator →