#643D2D#643D2D

#643D2D is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.2% C 0.061 H 43.0°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#643D2D
RGB	rgb(100, 61, 45)
HSL	hsl(17, 38%, 28%)
HSV	hsv(17, 55%, 39%)
CMYK	cmyk(0%, 39%, 55%, 60.8%)
CIE-LAB	lab(30.00, 15.20, 16.98)
CIE-LCH	lch(30.00, 22.79, 48.17°)
OKLab	oklab(40.23% 0.0446 0.0415)
OKLCH	oklch(40.23% 0.061 43)
XYZ	xyz(7.3984, 6.2369, 3.2963)
Luminance	0.0624 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D2D #2D5464

analogous

#642D38 #643D2D #64582D

triadic

#643D2D #2D643D #3D2D64

tetradic

#643D2D #38642D #2D5464 #582D64

square

#643D2D #38642D #2D5464 #582D64

split-complementary

#643D2D #2D6458 #2D3864

monochromatic

#150D09 #3A231A #643D2D #8E5740 #B47258

Accessibility & contrast

On white

9.34

#643D2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#643D2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D2D

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D2D	#FFFFFF	#000000	##FFFFFF
##643D2D	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47422C

Deuteranopia (green-blind)

#504A2D

Tritanopia (blue-blind)

#6D3639

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643d2d;
/* rgb */ color: rgb(100, 61, 45);
/* oklch */ color: oklch(40.2% 0.061 43.0);

Tailwind

colors: {
  custom: {
    50: '#937366',
    500: '#643d2d',
    950: '#000000',
  },
}

SCSS

$custom: #643d2d;
$custom-light: #937366;
$custom-dark: #000000;

JSON

{
  "hex": "#643d2d",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 45
  },
  "hsl": {
    "h": 17.455,
    "s": 37.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.40227,
    "c": 0.06096,
    "h": 43
  },
  "luminance": 0.06236
}

Semantic roles & 50–950 ramp

primary

#643D2D

secondary

#578496

accent

#ACCE5A

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0805

muted

#7E7B7A

Preview Lab

Preview with #643D2D

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

Preview Lab → · Contrast checker → · Palette generator →