#643E1D#643E1D

#643E1D is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.2% C 0.071 H 59.5°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#643E1D
RGB	rgb(100, 62, 29)
HSL	hsl(28, 55%, 25%)
HSV	hsv(28, 71%, 39%)
CMYK	cmyk(0%, 38%, 71%, 60.8%)
CIE-LAB	lab(30.02, 13.20, 26.68)
CIE-LCH	lch(30.02, 29.77, 63.67°)
OKLab	oklab(40.16% 0.036 0.0612)
OKLCH	oklch(40.16% 0.071 59.5)
XYZ	xyz(7.2005, 6.2440, 1.9881)
Luminance	0.0624 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E1D #1D4364

analogous

#641D20 #643E1D #64611D

triadic

#643E1D #1D643E #3E1D64

tetradic

#643E1D #20641D #1D4364 #611D64

square

#643E1D #20641D #1D4364 #611D64

split-complementary

#643E1D #1D6461 #1D2064

monochromatic

#180F07 #35210F #643E1D #935B2B #C37939

Accessibility & contrast

On white

9.34

#643E1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#643E1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E1D

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E1D	#FFFFFF	#000000	##FFFFFF
##643E1D	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)

#4A421A

Deuteranopia (green-blind)

#534A1D

Tritanopia (blue-blind)

#6D3637

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643e1d;
/* rgb */ color: rgb(100, 62, 29);
/* oklch */ color: oklch(40.2% 0.071 59.5);

Tailwind

colors: {
  custom: {
    50: '#94735a',
    500: '#643e1d',
    950: '#000000',
  },
}

SCSS

$custom: #643e1d;
$custom-light: #94735a;
$custom-dark: #000000;

JSON

{
  "hex": "#643e1d",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 29
  },
  "hsl": {
    "h": 27.887,
    "s": 55.039,
    "l": 25.294
  },
  "oklch": {
    "l": 0.40161,
    "c": 0.07102,
    "h": 59.5
  },
  "luminance": 0.06243
}

Semantic roles & 50–950 ramp

primary

#643E1D

secondary

#447199

accent

#99DE49

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #643E1D

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

Preview Lab → · Contrast checker → · Palette generator →