#663FC2#663FC2

#663FC2 is a mid, vivid violet. Relative luminance 0.103; OKLCH L 48.9% C 0.193 H 291.3°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#663FC2
RGB	rgb(102, 63, 194)
HSL	hsl(258, 52%, 50%)
HSV	hsv(258, 68%, 76%)
CMYK	cmyk(47.4%, 67.5%, 0%, 23.9%)
CIE-LAB	lab(38.33, 47.49, -62.77)
CIE-LCH	lch(38.33, 78.71, 307.11°)
OKLab	oklab(48.9% 0.0699 -0.1798)
OKLCH	oklch(48.9% 0.193 291.3)
XYZ	xyz(16.9919, 10.2742, 52.1163)
Luminance	0.1027 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.15

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FC2 #9BC23F

analogous

#3F59C2 #663FC2 #A83FC2

triadic

#663FC2 #C2663F #3FC266

tetradic

#663FC2 #C23F59 #9BC23F #3FC2A8

square

#663FC2 #C23F59 #9BC23F #3FC2A8

split-complementary

#663FC2 #C2A83F #59C23F

monochromatic

#352066 #4D2F95 #663FC2 #8B6DD1 #B09CE0

Accessibility & contrast

On white

6.87

#663FC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#663FC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FC2

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FC2	#FFFFFF	#000000	##FFFFFF
##663FC2	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC6

Deuteranopia (green-blind)

#0057BF

Tritanopia (blue-blind)

#495F7B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663fc2;
/* rgb */ color: rgb(102, 63, 194);
/* oklch */ color: oklch(48.9% 0.193 291.3);

Tailwind

colors: {
  custom: {
    50: '#9977d5',
    500: '#663fc2',
    950: '#000000',
  },
}

SCSS

$custom: #663fc2;
$custom-light: #9977d5;
$custom-dark: #000000;

JSON

{
  "hex": "#663fc2",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 194
  },
  "hsl": {
    "h": 257.863,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48904,
    "c": 0.19296,
    "h": 291.3
  },
  "luminance": 0.10275
}

Semantic roles & 50–950 ramp

primary

#663FC2

secondary

#BACC91

accent

#DB4DB1

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #663FC2

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

Preview Lab → · Contrast checker → · Palette generator →