#643E86#643E86

#643E86 is a dark, moderate violet. Relative luminance 0.079; OKLCH L 44.2% C 0.119 H 306.5°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#643E86
RGB	rgb(100, 62, 134)
HSL	hsl(272, 37%, 38%)
HSV	hsv(272, 54%, 53%)
CMYK	cmyk(25.4%, 53.7%, 0%, 47.5%)
CIE-LAB	lab(33.72, 31.39, -34.20)
CIE-LCH	lch(33.72, 46.42, 312.55°)
OKLab	oklab(44.17% 0.0711 -0.096)
OKLCH	oklch(44.17% 0.119 306.5)
XYZ	xyz(11.2803, 7.8759, 23.4756)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E86 #60863E

analogous

#403E86 #643E86 #863E84

triadic

#643E86 #86643E #3E8664

tetradic

#643E86 #86403E #60863E #3E8486

square

#643E86 #86403E #60863E #3E8486

split-complementary

#643E86 #84863E #3E8640

monochromatic

#261732 #452B5C #643E86 #8352AF #A17CC2

Accessibility & contrast

On white

8.15

#643E86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#643E86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E86

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E86	#FFFFFF	#000000	##FFFFFF
##643E86	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284E88

Deuteranopia (green-blind)

#345084

Tritanopia (blue-blind)

#5F4B5C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #643e86;
/* rgb */ color: rgb(100, 62, 134);
/* oklch */ color: oklch(44.2% 0.119 306.5);

Tailwind

colors: {
  custom: {
    50: '#9274a9',
    500: '#643e86',
    950: '#000000',
  },
}

SCSS

$custom: #643e86;
$custom-light: #9274a9;
$custom-dark: #000000;

JSON

{
  "hex": "#643e86",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 134
  },
  "hsl": {
    "h": 271.667,
    "s": 36.735,
    "l": 38.431
  },
  "oklch": {
    "l": 0.44174,
    "c": 0.11943,
    "h": 306.5
  },
  "luminance": 0.07876
}

Semantic roles & 50–950 ramp

primary

#643E86

secondary

#8EAC73

accent

#CD5B91

background

#F9F7FA

surface

#F1EDF4

border

#CBC8CE

text

#0D0810

muted

#7E7B7F

Preview Lab

Preview with #643E86

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

Preview Lab → · Contrast checker → · Palette generator →