#664FBF#664FBF

#664FBF is a mid, vivid violet. Relative luminance 0.122; OKLCH L 51.1% C 0.168 H 288.4°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#664FBF
RGB	rgb(102, 79, 191)
HSL	hsl(252, 47%, 53%)
HSV	hsv(252, 59%, 75%)
CMYK	cmyk(46.6%, 58.6%, 0%, 25.1%)
CIE-LAB	lab(41.50, 37.57, -55.88)
CIE-LCH	lch(41.50, 67.34, 303.91°)
OKLab	oklab(51.14% 0.0532 -0.1596)
OKLCH	oklch(51.14% 0.168 288.4)
XYZ	xyz(17.6767, 12.1776, 50.6992)
Luminance	0.1218 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FBF #A8BF4F

analogous

#4F70BF #664FBF #9E4FBF

triadic

#664FBF #BF664F #4FBF66

tetradic

#664FBF #BF4F70 #A8BF4F #4FBF9E

square

#664FBF #BF4F70 #A8BF4F #4FBF9E

split-complementary

#664FBF #BF9E4F #70BF4F

monochromatic

#36276C #4C3899 #664FBF #8D7CCF #B4A9E0

Accessibility & contrast

On white

6.11

#664FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#664FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FBF

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FBF	#FFFFFF	#000000	##FFFFFF
##664FBF	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C3

Deuteranopia (green-blind)

#005FBD

Tritanopia (blue-blind)

#4A687F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #664fbf;
/* rgb */ color: rgb(102, 79, 191);
/* oklch */ color: oklch(51.1% 0.168 288.4);

Tailwind

colors: {
  custom: {
    50: '#9881d3',
    500: '#664fbf',
    950: '#000000',
  },
}

SCSS

$custom: #664fbf;
$custom-light: #9881d3;
$custom-dark: #000000;

JSON

{
  "hex": "#664fbf",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 191
  },
  "hsl": {
    "h": 252.321,
    "s": 46.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.51135,
    "c": 0.1682,
    "h": 288.4
  },
  "luminance": 0.12178
}

Semantic roles & 50–950 ramp

primary

#664FBF

secondary

#C3CD9D

accent

#D651BB

background

#F9F7FD

surface

#F2EEFA

border

#CCC9D3

text

#0E0A14

muted

#7E7C83

Preview Lab

Preview with #664FBF

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

Preview Lab → · Contrast checker → · Palette generator →