#643D28#643D28

#643D28 is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.1% C 0.064 H 48.6°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#643D28
RGB	rgb(100, 61, 40)
HSL	hsl(21, 43%, 27%)
HSV	hsv(21, 60%, 39%)
CMYK	cmyk(0%, 39%, 60%, 60.8%)
CIE-LAB	lab(29.91, 14.71, 19.99)
CIE-LCH	lch(29.91, 24.82, 53.66°)
OKLab	oklab(40.13% 0.0424 0.048)
OKLCH	oklch(40.13% 0.064 48.6)
XYZ	xyz(7.3078, 6.2007, 2.8190)
Luminance	0.0620 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D28 #284F64

analogous

#642831 #643D28 #645B28

triadic

#643D28 #28643D #3D2864

tetradic

#643D28 #316428 #284F64 #5B2864

square

#643D28 #316428 #284F64 #5B2864

split-complementary

#643D28 #28645B #283164

monochromatic

#160D09 #382217 #643D28 #905839 #B8734E

Accessibility & contrast

On white

9.38

#643D28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#643D28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D28

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D28	#FFFFFF	#000000	##FFFFFF
##643D28	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484126

Deuteranopia (green-blind)

#514A28

Tritanopia (blue-blind)

#6D3638

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #643d28;
/* rgb */ color: rgb(100, 61, 40);
/* oklch */ color: oklch(40.1% 0.064 48.6);

Tailwind

colors: {
  custom: {
    50: '#937262',
    500: '#643d28',
    950: '#000000',
  },
}

SCSS

$custom: #643d28;
$custom-light: #937262;
$custom-dark: #000000;

JSON

{
  "hex": "#643d28",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 40
  },
  "hsl": {
    "h": 21,
    "s": 42.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.40129,
    "c": 0.06404,
    "h": 48.6
  },
  "luminance": 0.062
}

Semantic roles & 50–950 ramp

primary

#643D28

secondary

#517E97

accent

#A7D355

background

#F9F6F5

surface

#F2ECEA

border

#CCC7C6

text

#0D0805

muted

#7E7B79

Preview Lab

Preview with #643D28

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

Preview Lab → · Contrast checker → · Palette generator →