#663FCE#663FCE

#663FCE is a mid, highly saturated violet. Relative luminance 0.108; OKLCH L 49.9% C 0.207 H 289.2°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#663FCE
RGB	rgb(102, 63, 206)
HSL	hsl(256, 59%, 53%)
HSV	hsv(256, 69%, 81%)
CMYK	cmyk(50.5%, 69.4%, 0%, 19.2%)
CIE-LAB	lab(39.30, 50.84, -68.17)
CIE-LCH	lch(39.30, 85.04, 306.72°)
OKLab	oklab(49.9% 0.068 -0.1957)
OKLCH	oklch(49.9% 0.207 289.2)
XYZ	xyz(18.3943, 10.8352, 59.5027)
Luminance	0.1084 (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

#663FCE #A7CE3F

analogous

#3F5FCE #663FCE #AE3FCE

triadic

#663FCE #CE663F #3FCE66

tetradic

#663FCE #CE3F5F #A7CE3F #3FCEAE

square

#663FCE #CE3F5F #A7CE3F #3FCEAE

split-complementary

#663FCE #CEAE3F #5FCE3F

monochromatic

#361E75 #4C2AA6 #663FCE #8D70DA #B4A1E7

Accessibility & contrast

On white

6.63

#663FCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#663FCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FCE

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FCE	#FFFFFF	#000000	##FFFFFF
##663FCE	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD2

Deuteranopia (green-blind)

#0059CB

Tritanopia (blue-blind)

#416482

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #663fce;
/* rgb */ color: rgb(102, 63, 206);
/* oklch */ color: oklch(49.9% 0.207 289.2);

Tailwind

colors: {
  custom: {
    50: '#9b77de',
    500: '#663fce',
    950: '#000000',
  },
}

SCSS

$custom: #663fce;
$custom-light: #9b77de;
$custom-dark: #000000;

JSON

{
  "hex": "#663fce",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 206
  },
  "hsl": {
    "h": 256.364,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49901,
    "c": 0.20715,
    "h": 289.2
  },
  "luminance": 0.10836
}

Semantic roles & 50–950 ramp

primary

#663FCE

secondary

#C2D395

accent

#E345B8

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663FCE

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

Preview Lab → · Contrast checker → · Palette generator →