#663DD0#663DD0

#663DD0 is a mid, highly saturated violet. Relative luminance 0.107; OKLCH L 49.8% C 0.212 H 289.1°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#663DD0
RGB	rgb(102, 61, 208)
HSL	hsl(257, 61%, 53%)
HSV	hsv(257, 71%, 82%)
CMYK	cmyk(51%, 70.7%, 0%, 18.4%)
CIE-LAB	lab(39.10, 52.44, -69.66)
CIE-LCH	lch(39.10, 87.19, 306.97°)
OKLab	oklab(49.81% 0.0694 -0.2)
OKLCH	oklch(49.81% 0.212 289.1)
XYZ	xyz(18.5301, 10.7155, 60.7542)
Luminance	0.1072 (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

#663DD0 #A7D03D

analogous

#3D5DD0 #663DD0 #B03DD0

triadic

#663DD0 #D0663D #3DD066

tetradic

#663DD0 #D03D5D #A7D03D #3DD0B0

square

#663DD0 #D03D5D #A7D03D #3DD0B0

split-complementary

#663DD0 #D0B03D #5DD03D

monochromatic

#361D76 #4C29A7 #663DD0 #8D6EDC #B4A0E8

Accessibility & contrast

On white

6.68

#663DD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#663DD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DD0

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DD0	#FFFFFF	#000000	##FFFFFF
##663DD0	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD4

Deuteranopia (green-blind)

#0058CD

Tritanopia (blue-blind)

#3F6482

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #663dd0;
/* rgb */ color: rgb(102, 61, 208);
/* oklch */ color: oklch(49.8% 0.212 289.1);

Tailwind

colors: {
  custom: {
    50: '#9b76df',
    500: '#663dd0',
    950: '#000000',
  },
}

SCSS

$custom: #663dd0;
$custom-light: #9b76df;
$custom-dark: #000000;

JSON

{
  "hex": "#663dd0",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 208
  },
  "hsl": {
    "h": 256.735,
    "s": 60.996,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49807,
    "c": 0.21172,
    "h": 289.1
  },
  "luminance": 0.10716
}

Semantic roles & 50–950 ramp

primary

#663DD0

secondary

#C2D495

accent

#E444B7

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663DD0

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

Preview Lab → · Contrast checker → · Palette generator →