#663DD2#663DD2

#663DD2 is a mid, highly saturated violet. Relative luminance 0.108; OKLCH L 50.0% C 0.214 H 288.8°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#663DD2
RGB	rgb(102, 61, 210)
HSL	hsl(257, 62%, 53%)
HSV	hsv(257, 71%, 82%)
CMYK	cmyk(51.4%, 71%, 0%, 17.6%)
CIE-LAB	lab(39.27, 52.99, -70.54)
CIE-LCH	lch(39.27, 88.22, 306.92°)
OKLab	oklab(49.98% 0.069 -0.2026)
OKLCH	oklch(49.98% 0.214 288.8)
XYZ	xyz(18.7777, 10.8145, 62.0583)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 3.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663DD2 #A9D23D

analogous

#3D5ED2 #663DD2 #B03DD2

triadic

#663DD2 #D2663D #3DD266

tetradic

#663DD2 #D23D5E #A9D23D #3DD2B0

square

#663DD2 #D23D5E #A9D23D #3DD2B0

split-complementary

#663DD2 #D2B03D #5ED23D

monochromatic

#351C79 #4B28AA #663DD2 #8D6FDE #B4A0E9

Accessibility & contrast

On white

6.64

#663DD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#663DD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DD2

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DD2	#FFFFFF	#000000	##FFFFFF
##663DD2	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D6

Deuteranopia (green-blind)

#0059CF

Tritanopia (blue-blind)

#3E6483

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #663dd2;
/* rgb */ color: rgb(102, 61, 210);
/* oklch */ color: oklch(50.0% 0.214 288.8);

Tailwind

colors: {
  custom: {
    50: '#9c76e1',
    500: '#663dd2',
    950: '#000000',
  },
}

SCSS

$custom: #663dd2;
$custom-light: #9c76e1;
$custom-dark: #000000;

JSON

{
  "hex": "#663dd2",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 210
  },
  "hsl": {
    "h": 256.51,
    "s": 62.343,
    "l": 53.137
  },
  "oklch": {
    "l": 0.49979,
    "c": 0.21403,
    "h": 288.8
  },
  "luminance": 0.10815
}

Semantic roles & 50–950 ramp

primary

#663DD2

secondary

#C4D695

accent

#E542B9

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663DD2

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

Preview Lab → · Contrast checker → · Palette generator →