#643F19#643F19

#643F19 is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.3% C 0.073 H 63.5°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#643F19
RGB	rgb(100, 63, 25)
HSL	hsl(30, 60%, 25%)
HSV	hsv(30, 75%, 39%)
CMYK	cmyk(0%, 37%, 75%, 60.8%)
CIE-LAB	lab(30.24, 12.33, 29.13)
CIE-LCH	lch(30.24, 31.63, 67.07°)
OKLab	oklab(40.32% 0.0327 0.0657)
OKLCH	oklch(40.32% 0.073 63.5)
XYZ	xyz(7.2090, 6.3352, 1.7627)
Luminance	0.0634 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F19 #193E64

analogous

#641A19 #643F19 #646419

triadic

#643F19 #19643F #3F1964

tetradic

#643F19 #19641A #193E64 #641964

square

#643F19 #19641A #193E64 #641964

split-complementary

#643F19 #196464 #1A1964

monochromatic

#180F06 #33200D #643F19 #955E25 #C67D31

Accessibility & contrast

On white

9.26

#643F19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#643F19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F19

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F19	#FFFFFF	#000000	##FFFFFF
##643F19	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)

#4B4215

Deuteranopia (green-blind)

#534B1A

Tritanopia (blue-blind)

#6E3737

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f19;
/* rgb */ color: rgb(100, 63, 25);
/* oklch */ color: oklch(40.3% 0.073 63.5);

Tailwind

colors: {
  custom: {
    50: '#947458',
    500: '#643f19',
    950: '#000000',
  },
}

SCSS

$custom: #643f19;
$custom-light: #947458;
$custom-dark: #000000;

JSON

{
  "hex": "#643f19",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 25
  },
  "hsl": {
    "h": 30.4,
    "s": 60,
    "l": 24.51
  },
  "oklch": {
    "l": 0.40319,
    "c": 0.07339,
    "h": 63.5
  },
  "luminance": 0.06335
}

Semantic roles & 50–950 ramp

primary

#643F19

secondary

#3F6C9A

accent

#93E345

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #643F19

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

Preview Lab → · Contrast checker → · Palette generator →