#643DC9#643DC9

#643DC9 is a mid, highly saturated violet. Relative luminance 0.103; OKLCH L 49.0% C 0.204 H 289.5°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#643DC9
RGB	rgb(100, 61, 201)
HSL	hsl(257, 56%, 51%)
HSV	hsv(257, 70%, 79%)
CMYK	cmyk(50.2%, 69.7%, 0%, 21.2%)
CIE-LAB	lab(38.31, 50.15, -66.89)
CIE-LCH	lch(38.31, 83.61, 306.86°)
OKLab	oklab(49.02% 0.0678 -0.192)
OKLCH	oklch(49.02% 0.204 289.5)
XYZ	xyz(17.4638, 10.2631, 56.3078)
Luminance	0.1026 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DC9 #A2C93D

analogous

#3D5CC9 #643DC9 #AA3DC9

triadic

#643DC9 #C9643D #3DC964

tetradic

#643DC9 #C93D5C #A2C93D #3DC9AA

square

#643DC9 #C93D5C #A2C93D #3DC9AA

split-complementary

#643DC9 #C9AA3D #5CC93D

monochromatic

#341E6D #4B2C9D #643DC9 #8A6DD6 #B19DE4

Accessibility & contrast

On white

6.88

#643DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#643DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DC9

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DC9	#FFFFFF	#000000	##FFFFFF
##643DC9	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCD

Deuteranopia (green-blind)

#0057C6

Tritanopia (blue-blind)

#40617E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643dc9;
/* rgb */ color: rgb(100, 61, 201);
/* oklch */ color: oklch(49.0% 0.204 289.5);

Tailwind

colors: {
  custom: {
    50: '#9976da',
    500: '#643dc9',
    950: '#000000',
  },
}

SCSS

$custom: #643dc9;
$custom-light: #9976da;
$custom-dark: #000000;

JSON

{
  "hex": "#643dc9",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 201
  },
  "hsl": {
    "h": 256.714,
    "s": 56.452,
    "l": 51.373
  },
  "oklch": {
    "l": 0.49019,
    "c": 0.20364,
    "h": 289.5
  },
  "luminance": 0.10264
}

Semantic roles & 50–950 ramp

primary

#643DC9

secondary

#BFD092

accent

#E048B5

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643DC9

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

Preview Lab → · Contrast checker → · Palette generator →