#663EC4#663EC4

#663EC4 is a mid, vivid violet. Relative luminance 0.103; OKLCH L 48.9% C 0.197 H 291.1°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#663EC4
RGB	rgb(102, 62, 196)
HSL	hsl(258, 53%, 51%)
HSV	hsv(258, 68%, 77%)
CMYK	cmyk(48%, 68.4%, 0%, 23.1%)
CIE-LAB	lab(38.30, 48.58, -64.00)
CIE-LCH	lch(38.30, 80.35, 307.20°)
OKLab	oklab(48.93% 0.0706 -0.1834)
OKLCH	oklch(48.93% 0.197 291.1)
XYZ	xyz(17.1631, 10.2549, 53.2889)
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

#663EC4 #9CC43E

analogous

#3E59C4 #663EC4 #A93EC4

triadic

#663EC4 #C4663E #3EC466

tetradic

#663EC4 #C43E59 #9CC43E #3EC4A9

square

#663EC4 #C43E59 #9CC43E #3EC4A9

split-complementary

#663EC4 #C4A93E #59C43E

monochromatic

#352068 #4D2E97 #663EC4 #8B6DD2 #B09CE1

Accessibility & contrast

On white

6.88

#663EC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#663EC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663EC4

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EC4	#FFFFFF	#000000	##FFFFFF
##663EC4	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)

#005CC8

Deuteranopia (green-blind)

#0057C1

Tritanopia (blue-blind)

#48607C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663ec4;
/* rgb */ color: rgb(102, 62, 196);
/* oklch */ color: oklch(48.9% 0.197 291.1);

Tailwind

colors: {
  custom: {
    50: '#9a76d7',
    500: '#663ec4',
    950: '#000000',
  },
}

SCSS

$custom: #663ec4;
$custom-light: #9a76d7;
$custom-dark: #000000;

JSON

{
  "hex": "#663ec4",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 196
  },
  "hsl": {
    "h": 257.91,
    "s": 53.175,
    "l": 50.588
  },
  "oklch": {
    "l": 0.4893,
    "c": 0.19655,
    "h": 291.1
  },
  "luminance": 0.10256
}

Semantic roles & 50–950 ramp

primary

#663EC4

secondary

#BBCD91

accent

#DD4BB1

background

#FAF7FD

surface

#F3EDFA

border

#CDC8D3

text

#0F0914

muted

#7F7B83

Preview Lab

Preview with #663EC4

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

Preview Lab → · Contrast checker → · Palette generator →