#664FD3#664FD3

#664FD3 is a mid, vivid violet. Relative luminance 0.131; OKLCH L 52.6% C 0.194 H 285.6°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#664FD3
RGB	rgb(102, 79, 211)
HSL	hsl(250, 60%, 57%)
HSV	hsv(250, 63%, 83%)
CMYK	cmyk(51.7%, 62.6%, 0%, 17.3%)
CIE-LAB	lab(42.94, 43.48, -65.11)
CIE-LCH	lch(42.94, 78.30, 303.73°)
OKLab	oklab(52.65% 0.0522 -0.1867)
OKLCH	oklch(52.65% 0.194 285.6)
XYZ	xyz(20.0298, 13.1189, 63.0922)
Luminance	0.1312 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FD3 #BCD34F

analogous

#4F7AD3 #664FD3 #A84FD3

triadic

#664FD3 #D3664F #4FD366

tetradic

#664FD3 #D34F7A #BCD34F #4FD3A8

square

#664FD3 #D34F7A #BCD34F #4FD3A8

split-complementary

#664FD3 #D3A84F #7AD34F

monochromatic

#332286 #462EB7 #664FD3 #9180DF #BBB1EB

Accessibility & contrast

On white

5.79

#664FD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#664FD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FD3

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FD3	#FFFFFF	#000000	##FFFFFF
##664FD3	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D7

Deuteranopia (green-blind)

#0061D0

Tritanopia (blue-blind)

#3B6F8A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #664fd3;
/* rgb */ color: rgb(102, 79, 211);
/* oklch */ color: oklch(52.6% 0.194 285.6);

Tailwind

colors: {
  custom: {
    50: '#9a81e1',
    500: '#664fd3',
    950: '#000000',
  },
}

SCSS

$custom: #664fd3;
$custom-light: #9a81e1;
$custom-dark: #000000;

JSON

{
  "hex": "#664fd3",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 211
  },
  "hsl": {
    "h": 250.455,
    "s": 60,
    "l": 56.863
  },
  "oklch": {
    "l": 0.52649,
    "c": 0.19387,
    "h": 285.6
  },
  "luminance": 0.1312
}

Semantic roles & 50–950 ramp

primary

#664FD3

secondary

#D0DAA4

accent

#E345C8

background

#FAF8FD

surface

#F3EFFB

border

#CDCAD4

text

#0F0A15

muted

#7F7C83

Preview Lab

Preview with #664FD3

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

Preview Lab → · Contrast checker → · Palette generator →