#664BBC#664BBC

#664BBC is a mid, vivid violet. Relative luminance 0.115; OKLCH L 50.3% C 0.170 H 289.9°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#664BBC
RGB	rgb(102, 75, 188)
HSL	hsl(254, 46%, 52%)
HSV	hsv(254, 60%, 74%)
CMYK	cmyk(45.7%, 60.1%, 0%, 26.3%)
CIE-LAB	lab(40.39, 39.04, -55.92)
CIE-LCH	lch(40.39, 68.20, 304.92°)
OKLab	oklab(50.26% 0.0578 -0.1597)
OKLCH	oklch(50.26% 0.17 289.9)
XYZ	xyz(17.0701, 11.4871, 48.8850)
Luminance	0.1149 (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

#664BBC #A1BC4B

analogous

#4B69BC #664BBC #9F4BBC

triadic

#664BBC #BC664B #4BBC66

tetradic

#664BBC #BC4B69 #A1BC4B #4BBC9F

square

#664BBC #BC4B69 #A1BC4B #4BBC9F

split-complementary

#664BBC #BC9F4B #69BC4B

monochromatic

#362666 #4D3793 #664BBC #8C78CD #B2A4DD

Accessibility & contrast

On white

6.37

#664BBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#664BBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664BBC

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664BBC	#FFFFFF	#000000	##FFFFFF
##664BBC	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#005DBA

Tritanopia (blue-blind)

#4C657C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #664bbc;
/* rgb */ color: rgb(102, 75, 188);
/* oklch */ color: oklch(50.3% 0.170 289.9);

Tailwind

colors: {
  custom: {
    50: '#987ed1',
    500: '#664bbc',
    950: '#000000',
  },
}

SCSS

$custom: #664bbc;
$custom-light: #987ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#664bbc",
  "rgb": {
    "r": 102,
    "g": 75,
    "b": 188
  },
  "hsl": {
    "h": 254.336,
    "s": 45.749,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50256,
    "c": 0.16983,
    "h": 289.9
  },
  "luminance": 0.11488
}

Semantic roles & 50–950 ramp

primary

#664BBC

secondary

#BECA99

accent

#D552B6

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #664BBC

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

Preview Lab → · Contrast checker → · Palette generator →