#643D2B#643D2B

#643D2B is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.2% C 0.062 H 45.3°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#643D2B
RGB	rgb(100, 61, 43)
HSL	hsl(19, 40%, 28%)
HSV	hsv(19, 57%, 39%)
CMYK	cmyk(0%, 39%, 57%, 60.8%)
CIE-LAB	lab(29.97, 15.00, 18.19)
CIE-LCH	lch(29.97, 23.58, 50.50°)
OKLab	oklab(40.19% 0.0437 0.0442)
OKLCH	oklch(40.19% 0.062 45.3)
XYZ	xyz(7.3608, 6.2219, 3.0983)
Luminance	0.0622 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D2B #2B5264

analogous

#642B36 #643D2B #64592B

triadic

#643D2B #2B643D #3D2B64

tetradic

#643D2B #36642B #2B5264 #592B64

square

#643D2B #36642B #2B5264 #592B64

split-complementary

#643D2B #2B6459 #2B3664

monochromatic

#150D09 #392319 #643D2B #8F573D #B57354

Accessibility & contrast

On white

9.36

#643D2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#643D2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D2B

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D2B	#FFFFFF	#000000	##FFFFFF
##643D2B	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47422A

Deuteranopia (green-blind)

#514A2B

Tritanopia (blue-blind)

#6D3638

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643d2b;
/* rgb */ color: rgb(100, 61, 43);
/* oklch */ color: oklch(40.2% 0.062 45.3);

Tailwind

colors: {
  custom: {
    50: '#937264',
    500: '#643d2b',
    950: '#000000',
  },
}

SCSS

$custom: #643d2b;
$custom-light: #937264;
$custom-dark: #000000;

JSON

{
  "hex": "#643d2b",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 43
  },
  "hsl": {
    "h": 18.947,
    "s": 39.86,
    "l": 28.039
  },
  "oklch": {
    "l": 0.40187,
    "c": 0.06215,
    "h": 45.3
  },
  "luminance": 0.06221
}

Semantic roles & 50–950 ramp

primary

#643D2B

secondary

#558196

accent

#AAD058

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0805

muted

#7E7B7A

Preview Lab

Preview with #643D2B

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

Preview Lab → · Contrast checker → · Palette generator →