#643E21#643E21

#643E21 is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.2% C 0.068 H 56.6°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#643E21
RGB	rgb(100, 62, 33)
HSL	hsl(26, 50%, 26%)
HSV	hsv(26, 67%, 39%)
CMYK	cmyk(0%, 38%, 67%, 60.8%)
CIE-LAB	lab(30.07, 13.50, 24.42)
CIE-LCH	lch(30.07, 27.90, 61.07°)
OKLab	oklab(40.22% 0.0376 0.057)
OKLCH	oklch(40.22% 0.068 56.6)
XYZ	xyz(7.2532, 6.2650, 2.2658)
Luminance	0.0626 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E21 #214764

analogous

#642125 #643E21 #645F21

triadic

#643E21 #21643E #3E2164

tetradic

#643E21 #256421 #214764 #5F2164

square

#643E21 #256421 #214764 #5F2164

split-complementary

#643E21 #21645F #212564

monochromatic

#170E08 #362112 #643E21 #925B30 #C07740

Accessibility & contrast

On white

9.32

#643E21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#643E21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E21

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E21	#FFFFFF	#000000	##FFFFFF
##643E21	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49421E

Deuteranopia (green-blind)

#524A21

Tritanopia (blue-blind)

#6D3637

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643e21;
/* rgb */ color: rgb(100, 62, 33);
/* oklch */ color: oklch(40.2% 0.068 56.6);

Tailwind

colors: {
  custom: {
    50: '#93735d',
    500: '#643e21',
    950: '#000000',
  },
}

SCSS

$custom: #643e21;
$custom-light: #93735d;
$custom-dark: #000000;

JSON

{
  "hex": "#643e21",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 33
  },
  "hsl": {
    "h": 25.97,
    "s": 50.376,
    "l": 26.078
  },
  "oklch": {
    "l": 0.40217,
    "c": 0.06823,
    "h": 56.6
  },
  "luminance": 0.06264
}

Semantic roles & 50–950 ramp

primary

#643E21

secondary

#497698

accent

#9DDA4E

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0D0804

muted

#7E7B79

Preview Lab

Preview with #643E21

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

Preview Lab → · Contrast checker → · Palette generator →