#664CCB#664CCB

#664CCB is a mid, vivid violet. Relative luminance 0.123; OKLCH L 51.6% C 0.188 H 287.3°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#664CCB
RGB	rgb(102, 76, 203)
HSL	hsl(252, 55%, 55%)
HSV	hsv(252, 63%, 80%)
CMYK	cmyk(49.8%, 62.6%, 0%, 20.4%)
CIE-LAB	lab(41.70, 42.84, -62.53)
CIE-LCH	lch(41.70, 75.80, 304.42°)
OKLab	oklab(51.55% 0.0558 -0.1791)
OKLCH	oklch(51.55% 0.188 287.3)
XYZ	xyz(18.8403, 12.3046, 57.8706)
Luminance	0.1231 (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

#664CCB #B1CB4C

analogous

#4C72CB #664CCB #A54CCB

triadic

#664CCB #CB664C #4CCB66

tetradic

#664CCB #CB4C72 #B1CB4C #4CCBA5

square

#664CCB #CB4C72 #B1CB4C #4CCBA5

split-complementary

#664CCB #CBA54C #72CB4C

monochromatic

#352379 #4A31A9 #664CCB #8F7BD9 #B7ABE7

Accessibility & contrast

On white

6.07

#664CCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#664CCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CCB

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CCB	#FFFFFF	#000000	##FFFFFF
##664CCB	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CF

Deuteranopia (green-blind)

#005FC8

Tritanopia (blue-blind)

#426A84

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #664ccb;
/* rgb */ color: rgb(102, 76, 203);
/* oklch */ color: oklch(51.6% 0.188 287.3);

Tailwind

colors: {
  custom: {
    50: '#9a7fdc',
    500: '#664ccb',
    950: '#000000',
  },
}

SCSS

$custom: #664ccb;
$custom-light: #9a7fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#664ccb",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 203
  },
  "hsl": {
    "h": 252.283,
    "s": 54.978,
    "l": 54.706
  },
  "oklch": {
    "l": 0.51554,
    "c": 0.18762,
    "h": 287.3
  },
  "luminance": 0.12305
}

Semantic roles & 50–950 ramp

primary

#664CCB

secondary

#C9D49F

accent

#DE49C0

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #664CCB

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

Preview Lab → · Contrast checker → · Palette generator →