#663CC8#663CC8

#663CC8 is a mid, highly saturated violet. Relative luminance 0.102; OKLCH L 49.0% C 0.204 H 290.6°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#663CC8
RGB	rgb(102, 60, 200)
HSL	hsl(258, 56%, 51%)
HSV	hsv(258, 70%, 78%)
CMYK	cmyk(49%, 70%, 0%, 21.6%)
CIE-LAB	lab(38.24, 50.73, -66.41)
CIE-LCH	lch(38.24, 83.57, 307.38°)
OKLab	oklab(48.99% 0.0718 -0.1905)
OKLCH	oklch(48.99% 0.204 290.6)
XYZ	xyz(17.5177, 10.2259, 55.6832)
Luminance	0.1023 (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

#663CC8 #9EC83C

analogous

#3C58C8 #663CC8 #AC3CC8

triadic

#663CC8 #C8663C #3CC866

tetradic

#663CC8 #C83C58 #9EC83C #3CC8AC

square

#663CC8 #C83C58 #9EC83C #3CC8AC

split-complementary

#663CC8 #C8AC3C #58C83C

monochromatic

#351E6B #4D2C9B #663CC8 #8B6CD5 #B19BE3

Accessibility & contrast

On white

6.90

#663CC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#663CC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CC8

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CC8	#FFFFFF	#000000	##FFFFFF
##663CC8	1.00	6.90	3.05	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCC

Deuteranopia (green-blind)

#0057C5

Tritanopia (blue-blind)

#45607E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663cc8;
/* rgb */ color: rgb(102, 60, 200);
/* oklch */ color: oklch(49.0% 0.204 290.6);

Tailwind

colors: {
  custom: {
    50: '#9a75da',
    500: '#663cc8',
    950: '#000000',
  },
}

SCSS

$custom: #663cc8;
$custom-light: #9a75da;
$custom-dark: #000000;

JSON

{
  "hex": "#663cc8",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 200
  },
  "hsl": {
    "h": 258,
    "s": 56,
    "l": 50.98
  },
  "oklch": {
    "l": 0.48994,
    "c": 0.20358,
    "h": 290.6
  },
  "luminance": 0.10227
}

Semantic roles & 50–950 ramp

primary

#663CC8

secondary

#BCCF91

accent

#DF49B2

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663CC8

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

Preview Lab → · Contrast checker → · Palette generator →