#664BD8#664BD8

#664BD8 is a mid, highly saturated violet. Relative luminance 0.128; OKLCH L 52.4% C 0.205 H 285.7°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#664BD8
RGB	rgb(102, 75, 216)
HSL	hsl(251, 64%, 57%)
HSV	hsv(251, 65%, 85%)
CMYK	cmyk(52.8%, 65.3%, 0%, 15.3%)
CIE-LAB	lab(42.48, 47.22, -68.73)
CIE-LCH	lch(42.48, 83.39, 304.49°)
OKLab	oklab(52.43% 0.0555 -0.1973)
OKLCH	oklch(52.43% 0.205 285.7)
XYZ	xyz(20.3865, 12.8137, 66.3515)
Luminance	0.1281 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664BD8 #BDD84B

analogous

#4B77D8 #664BD8 #AC4BD8

triadic

#664BD8 #D8664B #4BD866

tetradic

#664BD8 #D84B77 #BDD84B #4BD8AC

square

#664BD8 #D84B77 #BDD84B #4BD8AC

split-complementary

#664BD8 #D8AC4B #77D84B

monochromatic

#331E8B #4529BD #664BD8 #917DE3 #BCB0EE

Accessibility & contrast

On white

5.89

#664BD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#664BD8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664BD8

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664BD8	#FFFFFF	#000000	##FFFFFF
##664BD8	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068DC

Deuteranopia (green-blind)

#0060D5

Tritanopia (blue-blind)

#376E8B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #664bd8;
/* rgb */ color: rgb(102, 75, 216);
/* oklch */ color: oklch(52.4% 0.205 285.7);

Tailwind

colors: {
  custom: {
    50: '#9b7fe5',
    500: '#664bd8',
    950: '#000000',
  },
}

SCSS

$custom: #664bd8;
$custom-light: #9b7fe5;
$custom-dark: #000000;

JSON

{
  "hex": "#664bd8",
  "rgb": {
    "r": 102,
    "g": 75,
    "b": 216
  },
  "hsl": {
    "h": 251.489,
    "s": 64.384,
    "l": 57.059
  },
  "oklch": {
    "l": 0.52435,
    "c": 0.20501,
    "h": 285.7
  },
  "luminance": 0.12815
}

Semantic roles & 50–950 ramp

primary

#664BD8

secondary

#D1DCA3

accent

#E740C7

background

#FAF7FE

surface

#F4EEFC

border

#CEC9D5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #664BD8

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

Preview Lab → · Contrast checker → · Palette generator →