#643D2C#643D2C

#643D2C is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.2% C 0.062 H 44.1°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#643D2C
RGB	rgb(100, 61, 44)
HSL	hsl(18, 39%, 28%)
HSV	hsv(18, 56%, 39%)
CMYK	cmyk(0%, 39%, 56%, 60.8%)
CIE-LAB	lab(29.98, 15.10, 17.59)
CIE-LCH	lch(29.98, 23.18, 49.36°)
OKLab	oklab(40.21% 0.0442 0.0429)
OKLCH	oklch(40.21% 0.062 44.1)
XYZ	xyz(7.3793, 6.2293, 3.1961)
Luminance	0.0623 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D2C #2C5364

analogous

#642C37 #643D2C #64592C

triadic

#643D2C #2C643D #3D2C64

tetradic

#643D2C #37642C #2C5364 #592C64

square

#643D2C #37642C #2C5364 #592C64

split-complementary

#643D2C #2C6459 #2C3764

monochromatic

#150D09 #392319 #643D2C #8E573F #B57356

Accessibility & contrast

On white

9.35

#643D2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#643D2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D2C

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D2C	#FFFFFF	#000000	##FFFFFF
##643D2C	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47422B

Deuteranopia (green-blind)

#504A2C

Tritanopia (blue-blind)

#6D3639

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643d2c;
/* rgb */ color: rgb(100, 61, 44);
/* oklch */ color: oklch(40.2% 0.062 44.1);

Tailwind

colors: {
  custom: {
    50: '#937365',
    500: '#643d2c',
    950: '#000000',
  },
}

SCSS

$custom: #643d2c;
$custom-light: #937365;
$custom-dark: #000000;

JSON

{
  "hex": "#643d2c",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 44
  },
  "hsl": {
    "h": 18.214,
    "s": 38.889,
    "l": 28.235
  },
  "oklch": {
    "l": 0.40207,
    "c": 0.06155,
    "h": 44.1
  },
  "luminance": 0.06229
}

Semantic roles & 50–950 ramp

primary

#643D2C

secondary

#568396

accent

#ABCF59

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0805

muted

#7E7B7A

Preview Lab

Preview with #643D2C

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

Preview Lab → · Contrast checker → · Palette generator →