#643E31#643E31

#643E31 is a dark, muted orange. Relative luminance 0.064; OKLCH L 40.5% C 0.058 H 39.6°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#643E31
RGB	rgb(100, 62, 49)
HSL	hsl(15, 34%, 29%)
HSV	hsv(15, 51%, 39%)
CMYK	cmyk(0%, 38%, 51%, 60.8%)
CIE-LAB	lab(30.34, 15.01, 14.89)
CIE-LCH	lch(30.34, 21.15, 44.77°)
OKLab	oklab(40.52% 0.0446 0.0369)
OKLCH	oklch(40.52% 0.058 39.6)
XYZ	xyz(7.5329, 6.3769, 3.7393)
Luminance	0.0638 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E31 #315764

analogous

#64313E #643E31 #645831

triadic

#643E31 #31643E #3E3164

tetradic

#643E31 #3E6431 #315764 #583164

square

#643E31 #3E6431 #315764 #583164

split-complementary

#643E31 #316458 #313E64

monochromatic

#150D0A #3B251D #643E31 #8D5745 #B1745F

Accessibility & contrast

On white

9.23

#643E31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#643E31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E31

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E31	#FFFFFF	#000000	##FFFFFF
##643E31	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474330

Deuteranopia (green-blind)

#514B31

Tritanopia (blue-blind)

#6C383B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643e31;
/* rgb */ color: rgb(100, 62, 49);
/* oklch */ color: oklch(40.5% 0.058 39.6);

Tailwind

colors: {
  custom: {
    50: '#927369',
    500: '#643e31',
    950: '#000000',
  },
}

SCSS

$custom: #643e31;
$custom-light: #927369;
$custom-dark: #000000;

JSON

{
  "hex": "#643e31",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 49
  },
  "hsl": {
    "h": 15.294,
    "s": 34.228,
    "l": 29.216
  },
  "oklch": {
    "l": 0.40516,
    "c": 0.05788,
    "h": 39.6
  },
  "luminance": 0.06376
}

Semantic roles & 50–950 ramp

primary

#643E31

secondary

#5C8795

accent

#AFCA5D

background

#F9F7F6

surface

#F1EDEB

border

#CBC8C6

text

#0D0806

muted

#7E7B7A

Preview Lab

Preview with #643E31

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

Preview Lab → · Contrast checker → · Palette generator →