#663FD6#663FD6

#663FD6 is a mid, highly saturated violet. Relative luminance 0.112; OKLCH L 50.6% C 0.216 H 287.9°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#663FD6
RGB	rgb(102, 63, 214)
HSL	hsl(255, 65%, 54%)
HSV	hsv(255, 71%, 84%)
CMYK	cmyk(52.3%, 70.6%, 0%, 16.1%)
CIE-LAB	lab(39.97, 53.09, -71.68)
CIE-LCH	lch(39.97, 89.20, 306.52°)
OKLab	oklab(50.59% 0.0665 -0.206)
OKLCH	oklch(50.59% 0.216 287.9)
XYZ	xyz(19.3910, 11.2339, 64.7519)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FD6 #AFD63F

analogous

#3F64D6 #663FD6 #B23FD6

triadic

#663FD6 #D6663F #3FD666

tetradic

#663FD6 #D63F64 #AFD63F #3FD6B2

square

#663FD6 #D63F64 #AFD63F #3FD6B2

split-complementary

#663FD6 #D6B23F #64D63F

monochromatic

#351B7F #4A26B2 #663FD6 #8E71E1 #B6A4EC

Accessibility & contrast

On white

6.47

#663FD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#663FD6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FD6

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FD6	#FFFFFF	#000000	##FFFFFF
##663FD6	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062DA

Deuteranopia (green-blind)

#005AD3

Tritanopia (blue-blind)

#3A6786

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #663fd6;
/* rgb */ color: rgb(102, 63, 214);
/* oklch */ color: oklch(50.6% 0.216 287.9);

Tailwind

colors: {
  custom: {
    50: '#9c77e4',
    500: '#663fd6',
    950: '#000000',
  },
}

SCSS

$custom: #663fd6;
$custom-light: #9c77e4;
$custom-dark: #000000;

JSON

{
  "hex": "#663fd6",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 214
  },
  "hsl": {
    "h": 255.497,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.50585,
    "c": 0.21646,
    "h": 287.9
  },
  "luminance": 0.11235
}

Semantic roles & 50–950 ramp

primary

#663FD6

secondary

#C8D898

accent

#E840BC

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #663FD6

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

Preview Lab → · Contrast checker → · Palette generator →