#643F1A#643F1A

#643F1A is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.3% C 0.073 H 63.0°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#643F1A
RGB	rgb(100, 63, 26)
HSL	hsl(30, 59%, 25%)
HSV	hsv(30, 74%, 39%)
CMYK	cmyk(0%, 37%, 74%, 60.8%)
CIE-LAB	lab(30.25, 12.39, 28.61)
CIE-LCH	lch(30.25, 31.17, 66.59°)
OKLab	oklab(40.33% 0.0331 0.0648)
OKLCH	oklch(40.33% 0.073 63)
XYZ	xyz(7.2200, 6.3396, 1.8205)
Luminance	0.0634 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F1A #1A3F64

analogous

#641A1A #643F1A #64641A

triadic

#643F1A #1A643F #3F1A64

tetradic

#643F1A #1A641A #1A3F64 #641A64

square

#643F1A #1A641A #1A3F64 #641A64

split-complementary

#643F1A #1A6464 #1A1A64

monochromatic

#180F06 #33200D #643F1A #955E27 #C57C33

Accessibility & contrast

On white

9.26

#643F1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#643F1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F1A

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F1A	#FFFFFF	#000000	##FFFFFF
##643F1A	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4216

Deuteranopia (green-blind)

#534B1A

Tritanopia (blue-blind)

#6D3737

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f1a;
/* rgb */ color: rgb(100, 63, 26);
/* oklch */ color: oklch(40.3% 0.073 63.0);

Tailwind

colors: {
  custom: {
    50: '#947458',
    500: '#643f1a',
    950: '#000000',
  },
}

SCSS

$custom: #643f1a;
$custom-light: #947458;
$custom-dark: #000000;

JSON

{
  "hex": "#643f1a",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 26
  },
  "hsl": {
    "h": 30,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.40331,
    "c": 0.07272,
    "h": 63
  },
  "luminance": 0.06339
}

Semantic roles & 50–950 ramp

primary

#643F1A

secondary

#406D9A

accent

#94E246

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #643F1A

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

Preview Lab → · Contrast checker → · Palette generator →