#663ED9#663ED9

#663ED9 is a mid, highly saturated violet. Relative luminance 0.113; OKLCH L 50.7% C 0.221 H 287.6°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#663ED9
RGB	rgb(102, 62, 217)
HSL	hsl(255, 67%, 55%)
HSV	hsv(255, 71%, 85%)
CMYK	cmyk(53%, 71.4%, 0%, 14.9%)
CIE-LAB	lab(40.05, 54.44, -73.29)
CIE-LCH	lch(40.05, 91.29, 306.60°)
OKLab	oklab(50.72% 0.0667 -0.2107)
OKLCH	oklch(50.72% 0.221 287.6)
XYZ	xyz(19.7228, 11.2788, 66.7700)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663ED9 #B1D93E

analogous

#3E63D9 #663ED9 #B43ED9

triadic

#663ED9 #D9663E #3ED966

tetradic

#663ED9 #D93E63 #B1D93E #3ED9B4

square

#663ED9 #D93E63 #B1D93E #3ED9B4

split-complementary

#663ED9 #D9B43E #63D93E

monochromatic

#351A83 #4A24B6 #663ED9 #8F71E3 #B7A4ED

Accessibility & contrast

On white

6.45

#663ED9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#663ED9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663ED9

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663ED9	#FFFFFF	#000000	##FFFFFF
##663ED9	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062DE

Deuteranopia (green-blind)

#005AD6

Tritanopia (blue-blind)

#386788

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #663ed9;
/* rgb */ color: rgb(102, 62, 217);
/* oklch */ color: oklch(50.7% 0.221 287.6);

Tailwind

colors: {
  custom: {
    50: '#9c77e6',
    500: '#663ed9',
    950: '#000000',
  },
}

SCSS

$custom: #663ed9;
$custom-light: #9c77e6;
$custom-dark: #000000;

JSON

{
  "hex": "#663ed9",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 217
  },
  "hsl": {
    "h": 255.484,
    "s": 67.1,
    "l": 54.706
  },
  "oklch": {
    "l": 0.50717,
    "c": 0.22099,
    "h": 287.6
  },
  "luminance": 0.1128
}

Semantic roles & 50–950 ramp

primary

#663ED9

secondary

#C9DA99

accent

#EA3EBE

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #663ED9

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

Preview Lab → · Contrast checker → · Palette generator →