#643D1C#643D1C

#643D1C is a dark, moderate orange. Relative luminance 0.061; OKLCH L 39.9% C 0.072 H 58.7°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#643D1C
RGB	rgb(100, 61, 28)
HSL	hsl(28, 56%, 25%)
HSV	hsv(28, 72%, 39%)
CMYK	cmyk(0%, 39%, 72%, 60.8%)
CIE-LAB	lab(29.74, 13.76, 26.93)
CIE-LCH	lch(29.74, 30.24, 62.95°)
OKLab	oklab(39.94% 0.0375 0.0616)
OKLCH	oklch(39.94% 0.072 58.7)
XYZ	xyz(7.1344, 6.1313, 1.9061)
Luminance	0.0613 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D1C #1C4364

analogous

#641C1F #643D1C #64611C

triadic

#643D1C #1C643D #3D1C64

tetradic

#643D1C #1F641C #1C4364 #611C64

square

#643D1C #1F641C #1C4364 #611C64

split-complementary

#643D1C #1C6461 #1C1F64

monochromatic

#180F07 #34200F #643D1C #945A29 #C47737

Accessibility & contrast

On white

9.43

#643D1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#643D1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D1C

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D1C	#FFFFFF	#000000	##FFFFFF
##643D1C	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494119

Deuteranopia (green-blind)

#524A1C

Tritanopia (blue-blind)

#6D3536

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #643d1c;
/* rgb */ color: rgb(100, 61, 28);
/* oklch */ color: oklch(39.9% 0.072 58.7);

Tailwind

colors: {
  custom: {
    50: '#947259',
    500: '#643d1c',
    950: '#000000',
  },
}

SCSS

$custom: #643d1c;
$custom-light: #947259;
$custom-dark: #000000;

JSON

{
  "hex": "#643d1c",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 28
  },
  "hsl": {
    "h": 27.5,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.39941,
    "c": 0.07208,
    "h": 58.7
  },
  "luminance": 0.06131
}

Semantic roles & 50–950 ramp

primary

#643D1C

secondary

#437299

accent

#9AE048

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #643D1C

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

Preview Lab → · Contrast checker → · Palette generator →