#664FB2#664FB2

#664FB2 is a mid, vivid violet. Relative luminance 0.116; OKLCH L 50.2% C 0.151 H 290.6°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#664FB2
RGB	rgb(102, 79, 178)
HSL	hsl(254, 39%, 50%)
HSV	hsv(254, 56%, 70%)
CMYK	cmyk(42.7%, 55.6%, 0%, 30.2%)
CIE-LAB	lab(40.62, 33.78, -49.67)
CIE-LCH	lch(40.62, 60.07, 304.22°)
OKLab	oklab(50.21% 0.0532 -0.1413)
OKLCH	oklch(50.21% 0.151 290.6)
XYZ	xyz(16.3091, 11.6306, 43.4965)
Luminance	0.1163 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FB2 #9BB24F

analogous

#4F6AB2 #664FB2 #974FB2

triadic

#664FB2 #B2664F #4FB266

tetradic

#664FB2 #B24F6A #9BB24F #4FB297

square

#664FB2 #B24F6A #9BB24F #4FB297

split-complementary

#664FB2 #B2974F #6AB24F

monochromatic

#35295E #4D3C88 #664FB2 #8B7AC5 #B0A4D7

Accessibility & contrast

On white

6.31

#664FB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#664FB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FB2

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FB2	#FFFFFF	#000000	##FFFFFF
##664FB2	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C62B5

Deuteranopia (green-blind)

#205EB0

Tritanopia (blue-blind)

#506479

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #664fb2;
/* rgb */ color: rgb(102, 79, 178);
/* oklch */ color: oklch(50.2% 0.151 290.6);

Tailwind

colors: {
  custom: {
    50: '#9681ca',
    500: '#664fb2',
    950: '#000000',
  },
}

SCSS

$custom: #664fb2;
$custom-light: #9681ca;
$custom-dark: #000000;

JSON

{
  "hex": "#664fb2",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 178
  },
  "hsl": {
    "h": 253.939,
    "s": 39.13,
    "l": 50.392
  },
  "oklch": {
    "l": 0.50212,
    "c": 0.15099,
    "h": 290.6
  },
  "luminance": 0.11631
}

Semantic roles & 50–950 ramp

primary

#664FB2

secondary

#BAC498

accent

#CF59B4

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #664FB2

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

Preview Lab → · Contrast checker → · Palette generator →