#663ED3#663ED3

#663ED3 is a mid, highly saturated violet. Relative luminance 0.110; OKLCH L 50.2% C 0.214 H 288.5°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#663ED3
RGB	rgb(102, 62, 211)
HSL	hsl(256, 63%, 54%)
HSV	hsv(256, 71%, 83%)
CMYK	cmyk(51.7%, 70.6%, 0%, 17.3%)
CIE-LAB	lab(39.53, 52.76, -70.67)
CIE-LCH	lch(39.53, 88.20, 306.74°)
OKLab	oklab(50.2% 0.0679 -0.203)
OKLCH	oklch(50.2% 0.214 288.5)
XYZ	xyz(18.9565, 10.9723, 62.7344)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 3.41

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663ED3 #ABD33E

analogous

#3E60D3 #663ED3 #B03ED3

triadic

#663ED3 #D3663E #3ED366

tetradic

#663ED3 #D33E60 #ABD33E #3ED3B0

square

#663ED3 #D33E60 #ABD33E #3ED3B0

split-complementary

#663ED3 #D3B03E #60D33E

monochromatic

#351C7B #4B27AC #663ED3 #8E70DE #B5A2EA

Accessibility & contrast

On white

6.57

#663ED3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#663ED3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663ED3

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663ED3	#FFFFFF	#000000	##FFFFFF
##663ED3	1.00	6.57	3.19	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D7

Deuteranopia (green-blind)

#0059D0

Tritanopia (blue-blind)

#3D6584

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #663ed3;
/* rgb */ color: rgb(102, 62, 211);
/* oklch */ color: oklch(50.2% 0.214 288.5);

Tailwind

colors: {
  custom: {
    50: '#9c77e2',
    500: '#663ed3',
    950: '#000000',
  },
}

SCSS

$custom: #663ed3;
$custom-light: #9c77e2;
$custom-dark: #000000;

JSON

{
  "hex": "#663ed3",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 211
  },
  "hsl": {
    "h": 256.107,
    "s": 62.869,
    "l": 53.529
  },
  "oklch": {
    "l": 0.50196,
    "c": 0.21408,
    "h": 288.5
  },
  "luminance": 0.10973
}

Semantic roles & 50–950 ramp

primary

#663ED3

secondary

#C5D696

accent

#E642BA

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0915

muted

#7F7B84

Preview Lab

Preview with #663ED3

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

Preview Lab → · Contrast checker → · Palette generator →