#643FDF#643FDF

#643FDF is a mid, highly saturated violet. Relative luminance 0.116; OKLCH L 51.2% C 0.227 H 285.8°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#643FDF
RGB	rgb(100, 63, 223)
HSL	hsl(254, 71%, 56%)
HSV	hsv(254, 72%, 87%)
CMYK	cmyk(55.2%, 71.7%, 0%, 12.5%)
CIE-LAB	lab(40.56, 55.33, -75.89)
CIE-LCH	lch(40.56, 93.91, 306.09°)
OKLab	oklab(51.19% 0.0618 -0.2184)
OKLCH	oklch(51.19% 0.227 285.8)
XYZ	xyz(20.3483, 11.5909, 70.9628)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FDF #BADF3F

analogous

#3F6ADF #643FDF #B43FDF

triadic

#643FDF #DF643F #3FDF64

tetradic

#643FDF #DF3F6A #BADF3F #3FDFB4

square

#643FDF #DF3F6A #BADF3F #3FDFB4

split-complementary

#643FDF #DFB43F #6ADF3F

monochromatic

#32178C #4520C1 #643FDF #8E73E8 #B9A8F0

Accessibility & contrast

On white

6.33

#643FDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#643FDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FDF

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FDF	#FFFFFF	#000000	##FFFFFF
##643FDF	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E4

Deuteranopia (green-blind)

#005BDC

Tritanopia (blue-blind)

#2B6A8B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #643fdf;
/* rgb */ color: rgb(100, 63, 223);
/* oklch */ color: oklch(51.2% 0.227 285.8);

Tailwind

colors: {
  custom: {
    50: '#9c78ea',
    500: '#643fdf',
    950: '#000000',
  },
}

SCSS

$custom: #643fdf;
$custom-light: #9c78ea;
$custom-dark: #000000;

JSON

{
  "hex": "#643fdf",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 223
  },
  "hsl": {
    "h": 253.875,
    "s": 71.429,
    "l": 56.078
  },
  "oklch": {
    "l": 0.51194,
    "c": 0.22696,
    "h": 285.8
  },
  "luminance": 0.11592
}

Semantic roles & 50–950 ramp

primary

#643FDF

secondary

#CFDE9C

accent

#EE3AC4

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#100916

muted

#7F7B84

Preview Lab

Preview with #643FDF

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

Preview Lab → · Contrast checker → · Palette generator →