#663CD7#663CD7

#663CD7 is a mid, highly saturated violet. Relative luminance 0.110; OKLCH L 50.3% C 0.221 H 288.1°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#663CD7
RGB	rgb(102, 60, 215)
HSL	hsl(256, 66%, 54%)
HSV	hsv(256, 72%, 84%)
CMYK	cmyk(52.6%, 72.1%, 0%, 15.7%)
CIE-LAB	lab(39.52, 54.88, -73.01)
CIE-LCH	lch(39.52, 91.33, 306.93°)
OKLab	oklab(50.29% 0.0687 -0.2099)
OKLCH	oklch(50.29% 0.221 288.1)
XYZ	xyz(19.3575, 10.9618, 65.3727)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663CD7 #ADD73C

analogous

#3C60D7 #663CD7 #B43CD7

triadic

#663CD7 #D7663C #3CD766

tetradic

#663CD7 #D73C60 #ADD73C #3CD7B4

square

#663CD7 #D73C60 #ADD73C #3CD7B4

split-complementary

#663CD7 #D7B43C #60D73C

monochromatic

#351A7F #4B24B1 #663CD7 #8E6FE1 #B6A2EC

Accessibility & contrast

On white

6.58

#663CD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#663CD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CD7

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CD7	#FFFFFF	#000000	##FFFFFF
##663CD7	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060DC

Deuteranopia (green-blind)

#0059D4

Tritanopia (blue-blind)

#3A6686

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #663cd7;
/* rgb */ color: rgb(102, 60, 215);
/* oklch */ color: oklch(50.3% 0.221 288.1);

Tailwind

colors: {
  custom: {
    50: '#9c76e5',
    500: '#663cd7',
    950: '#000000',
  },
}

SCSS

$custom: #663cd7;
$custom-light: #9c76e5;
$custom-dark: #000000;

JSON

{
  "hex": "#663cd7",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 215
  },
  "hsl": {
    "h": 256.258,
    "s": 65.957,
    "l": 53.922
  },
  "oklch": {
    "l": 0.50288,
    "c": 0.22082,
    "h": 288.1
  },
  "luminance": 0.10963
}

Semantic roles & 50–950 ramp

primary

#663CD7

secondary

#C7D896

accent

#E93FBB

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #663CD7

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

Preview Lab → · Contrast checker → · Palette generator →