#643B19#643B19

#643B19 is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.5% C 0.075 H 57.6°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#643B19
RGB	rgb(100, 59, 25)
HSL	hsl(27, 60%, 25%)
HSV	hsv(27, 75%, 39%)
CMYK	cmyk(0%, 41%, 75%, 60.8%)
CIE-LAB	lab(29.18, 14.80, 27.99)
CIE-LCH	lch(29.18, 31.66, 62.13°)
OKLab	oklab(39.5% 0.0401 0.0633)
OKLCH	oklch(39.5% 0.075 57.6)
XYZ	xyz(6.9955, 5.9081, 1.6915)
Luminance	0.0591 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B19 #194264

analogous

#64191D #643B19 #646119

triadic

#643B19 #19643B #3B1964

tetradic

#643B19 #1D6419 #194264 #611964

square

#643B19 #1D6419 #194264 #611964

split-complementary

#643B19 #196461 #191D64

monochromatic

#180E06 #331E0D #643B19 #955825 #C67531

Accessibility & contrast

On white

9.63

#643B19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#643B19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B19

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B19	#FFFFFF	#000000	##FFFFFF
##643B19	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F15

Deuteranopia (green-blind)

#514819

Tritanopia (blue-blind)

#6E3234

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b19;
/* rgb */ color: rgb(100, 59, 25);
/* oklch */ color: oklch(39.5% 0.075 57.6);

Tailwind

colors: {
  custom: {
    50: '#947157',
    500: '#643b19',
    950: '#000000',
  },
}

SCSS

$custom: #643b19;
$custom-light: #947157;
$custom-dark: #000000;

JSON

{
  "hex": "#643b19",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 25
  },
  "hsl": {
    "h": 27.2,
    "s": 60,
    "l": 24.51
  },
  "oklch": {
    "l": 0.39495,
    "c": 0.07488,
    "h": 57.6
  },
  "luminance": 0.05907
}

Semantic roles & 50–950 ramp

primary

#643B19

secondary

#3F719A

accent

#9BE345

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643B19

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

Preview Lab → · Contrast checker → · Palette generator →