#664BD9#664BD9

#664BD9 is a mid, highly saturated violet. Relative luminance 0.129; OKLCH L 52.5% C 0.206 H 285.6°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#664BD9
RGB	rgb(102, 75, 217)
HSL	hsl(251, 65%, 57%)
HSV	hsv(251, 65%, 85%)
CMYK	cmyk(53%, 65.4%, 0%, 14.9%)
CIE-LAB	lab(42.56, 47.52, -69.18)
CIE-LCH	lch(42.56, 83.92, 304.49°)
OKLab	oklab(52.52% 0.0554 -0.1987)
OKLCH	oklch(52.52% 0.206 285.6)
XYZ	xyz(20.5162, 12.8656, 67.0344)
Luminance	0.1287 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664BD9 #BED94B

analogous

#4B77D9 #664BD9 #AD4BD9

triadic

#664BD9 #D9664B #4BD966

tetradic

#664BD9 #D94B77 #BED94B #4BD9AD

square

#664BD9 #D94B77 #BED94B #4BD9AD

split-complementary

#664BD9 #D9AD4B #77D94B

monochromatic

#331E8C #4528BF #664BD9 #917EE4 #BCB0EE

Accessibility & contrast

On white

5.88

#664BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#664BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664BD9

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664BD9	#FFFFFF	#000000	##FFFFFF
##664BD9	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068DD

Deuteranopia (green-blind)

#0060D6

Tritanopia (blue-blind)

#366F8B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #664bd9;
/* rgb */ color: rgb(102, 75, 217);
/* oklch */ color: oklch(52.5% 0.206 285.6);

Tailwind

colors: {
  custom: {
    50: '#9c7fe6',
    500: '#664bd9',
    950: '#000000',
  },
}

SCSS

$custom: #664bd9;
$custom-light: #9c7fe6;
$custom-dark: #000000;

JSON

{
  "hex": "#664bd9",
  "rgb": {
    "r": 102,
    "g": 75,
    "b": 217
  },
  "hsl": {
    "h": 251.408,
    "s": 65.138,
    "l": 57.255
  },
  "oklch": {
    "l": 0.52516,
    "c": 0.20623,
    "h": 285.6
  },
  "luminance": 0.12867
}

Semantic roles & 50–950 ramp

primary

#664BD9

secondary

#D2DDA3

accent

#E840C8

background

#FAF7FE

surface

#F4EEFC

border

#CEC9D5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #664BD9

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

Preview Lab → · Contrast checker → · Palette generator →