#643B2D#643B2D

#643B2D is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.8% C 0.063 H 39.6°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#643B2D
RGB	rgb(100, 59, 45)
HSL	hsl(15, 38%, 28%)
HSV	hsv(15, 55%, 39%)
CMYK	cmyk(0%, 41%, 55%, 60.8%)
CIE-LAB	lab(29.48, 16.43, 16.30)
CIE-LCH	lch(29.48, 23.15, 44.78°)
OKLab	oklab(39.83% 0.0484 0.04)
OKLCH	oklch(39.83% 0.063 39.6)
XYZ	xyz(7.2936, 6.0274, 3.2614)
Luminance	0.0603 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B2D #2D5664

analogous

#642D3A #643B2D #64562D

triadic

#643B2D #2D643B #3B2D64

tetradic

#643B2D #3A642D #2D5664 #562D64

square

#643B2D #3A642D #2D5664 #562D64

split-complementary

#643B2D #2D6456 #2D3A64

monochromatic

#150C09 #3A221A #643B2D #8E5440 #B46F58

Accessibility & contrast

On white

9.52

#643B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#643B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B2D

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B2D	#FFFFFF	#000000	##FFFFFF
##643B2D	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45402C

Deuteranopia (green-blind)

#4F492D

Tritanopia (blue-blind)

#6D3437

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b2d;
/* rgb */ color: rgb(100, 59, 45);
/* oklch */ color: oklch(39.8% 0.063 39.6);

Tailwind

colors: {
  custom: {
    50: '#937166',
    500: '#643b2d',
    950: '#000000',
  },
}

SCSS

$custom: #643b2d;
$custom-light: #937166;
$custom-dark: #000000;

JSON

{
  "hex": "#643b2d",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 45
  },
  "hsl": {
    "h": 15.273,
    "s": 37.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.39826,
    "c": 0.06275,
    "h": 39.6
  },
  "luminance": 0.06027
}

Semantic roles & 50–950 ramp

primary

#643B2D

secondary

#578696

accent

#B0CE5A

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0705

muted

#7E7A7A

Preview Lab

Preview with #643B2D

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

Preview Lab → · Contrast checker → · Palette generator →