#643AD9#643AD9

#643AD9 is a mid, highly saturated violet. Relative luminance 0.107; OKLCH L 50.0% C 0.225 H 287.3°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#643AD9
RGB	rgb(100, 58, 217)
HSL	hsl(256, 68%, 54%)
HSV	hsv(256, 73%, 85%)
CMYK	cmyk(53.9%, 73.3%, 0%, 14.9%)
CIE-LAB	lab(39.15, 56.13, -74.77)
CIE-LCH	lch(39.15, 93.49, 306.90°)
OKLab	oklab(50.03% 0.067 -0.2151)
OKLCH	oklch(50.03% 0.225 287.3)
XYZ	xyz(19.2893, 10.7442, 66.6896)
Luminance	0.1075 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643AD9 #AFD93A

analogous

#3A60D9 #643AD9 #B43AD9

triadic

#643AD9 #D9643A #3AD964

tetradic

#643AD9 #D93A60 #AFD93A #3AD9B4

square

#643AD9 #D93A60 #AFD93A #3AD9B4

split-complementary

#643AD9 #D9B43A #60D93A

monochromatic

#341980 #4923B3 #643AD9 #8C6DE3 #B5A1ED

Accessibility & contrast

On white

6.67

#643AD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#643AD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643AD9

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AD9	#FFFFFF	#000000	##FFFFFF
##643AD9	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060DE

Deuteranopia (green-blind)

#0058D6

Tritanopia (blue-blind)

#336687

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #643ad9;
/* rgb */ color: rgb(100, 58, 217);
/* oklch */ color: oklch(50.0% 0.225 287.3);

Tailwind

colors: {
  custom: {
    50: '#9c74e6',
    500: '#643ad9',
    950: '#000000',
  },
}

SCSS

$custom: #643ad9;
$custom-light: #9c74e6;
$custom-dark: #000000;

JSON

{
  "hex": "#643ad9",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 217
  },
  "hsl": {
    "h": 255.849,
    "s": 67.66,
    "l": 53.922
  },
  "oklch": {
    "l": 0.50034,
    "c": 0.22526,
    "h": 287.3
  },
  "luminance": 0.10745
}

Semantic roles & 50–950 ramp

primary

#643AD9

secondary

#C7D995

accent

#EB3DBD

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#0F0816

muted

#7F7B84

Preview Lab

Preview with #643AD9

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

Preview Lab → · Contrast checker → · Palette generator →