#663FD0#663FD0

#663FD0 is a mid, highly saturated violet. Relative luminance 0.109; OKLCH L 50.1% C 0.209 H 288.8°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#663FD0
RGB	rgb(102, 63, 208)
HSL	hsl(256, 61%, 53%)
HSV	hsv(256, 70%, 82%)
CMYK	cmyk(51%, 69.7%, 0%, 18.4%)
CIE-LAB	lab(39.47, 51.41, -69.05)
CIE-LCH	lch(39.47, 86.09, 306.67°)
OKLab	oklab(50.07% 0.0676 -0.1983)
OKLCH	oklch(50.07% 0.209 288.8)
XYZ	xyz(18.6389, 10.9330, 60.7905)
Luminance	0.1093 (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

#663FD0 #A9D03F

analogous

#3F60D0 #663FD0 #AE3FD0

triadic

#663FD0 #D0663F #3FD066

tetradic

#663FD0 #D03F60 #A9D03F #3FD0AE

square

#663FD0 #D03F60 #A9D03F #3FD0AE

split-complementary

#663FD0 #D0AE3F #60D03F

monochromatic

#351D77 #4B29A9 #663FD0 #8D70DC #B4A1E8

Accessibility & contrast

On white

6.59

#663FD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#663FD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FD0

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FD0	#FFFFFF	#000000	##FFFFFF
##663FD0	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D4

Deuteranopia (green-blind)

#0059CD

Tritanopia (blue-blind)

#3F6583

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #663fd0;
/* rgb */ color: rgb(102, 63, 208);
/* oklch */ color: oklch(50.1% 0.209 288.8);

Tailwind

colors: {
  custom: {
    50: '#9b77df',
    500: '#663fd0',
    950: '#000000',
  },
}

SCSS

$custom: #663fd0;
$custom-light: #9b77df;
$custom-dark: #000000;

JSON

{
  "hex": "#663fd0",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 208
  },
  "hsl": {
    "h": 256.138,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.50071,
    "c": 0.20948,
    "h": 288.8
  },
  "luminance": 0.10934
}

Semantic roles & 50–950 ramp

primary

#663FD0

secondary

#C4D596

accent

#E444B9

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663FD0

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

Preview Lab → · Contrast checker → · Palette generator →