#643F25#643F25

#643F25 is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.5% C 0.065 H 54.9°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#643F25
RGB	rgb(100, 63, 37)
HSL	hsl(25, 46%, 27%)
HSV	hsv(25, 63%, 39%)
CMYK	cmyk(0%, 37%, 63%, 60.8%)
CIE-LAB	lab(30.40, 13.20, 22.42)
CIE-LCH	lch(30.40, 26.02, 59.51°)
OKLab	oklab(40.49% 0.0374 0.0531)
OKLCH	oklch(40.49% 0.065 54.9)
XYZ	xyz(7.3675, 6.3986, 2.5969)
Luminance	0.0640 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F25 #254A64

analogous

#64252B #643F25 #645F25

triadic

#643F25 #25643F #3F2564

tetradic

#643F25 #2B6425 #254A64 #5F2564

square

#643F25 #2B6425 #254A64 #5F2564

split-complementary

#643F25 #25645F #252B64

monochromatic

#160E08 #372314 #643F25 #915B36 #BB7848

Accessibility & contrast

On white

9.21

#643F25 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#643F25 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F25

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F25	#FFFFFF	#000000	##FFFFFF
##643F25	1.00	9.21	2.28	9.21
#FFFFFF	9.21	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4323

Deuteranopia (green-blind)

#524B25

Tritanopia (blue-blind)

#6D3839

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #643f25;
/* rgb */ color: rgb(100, 63, 37);
/* oklch */ color: oklch(40.5% 0.065 54.9);

Tailwind

colors: {
  custom: {
    50: '#937460',
    500: '#643f25',
    950: '#000000',
  },
}

SCSS

$custom: #643f25;
$custom-light: #937460;
$custom-dark: #000000;

JSON

{
  "hex": "#643f25",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 37
  },
  "hsl": {
    "h": 24.762,
    "s": 45.985,
    "l": 26.863
  },
  "oklch": {
    "l": 0.40488,
    "c": 0.06493,
    "h": 54.9
  },
  "luminance": 0.06398
}

Semantic roles & 50–950 ramp

primary

#643F25

secondary

#4E7997

accent

#9FD652

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0D0805

muted

#7E7B79

Preview Lab

Preview with #643F25

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

Preview Lab → · Contrast checker → · Palette generator →