#664BCC#664BCC

#664BCC is a mid, vivid violet. Relative luminance 0.122; OKLCH L 51.5% C 0.190 H 287.4°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#664BCC
RGB	rgb(102, 75, 204)
HSL	hsl(253, 56%, 55%)
HSV	hsv(253, 63%, 80%)
CMYK	cmyk(50%, 63.2%, 0%, 20%)
CIE-LAB	lab(41.56, 43.71, -63.33)
CIE-LCH	lch(41.56, 76.95, 304.61°)
OKLab	oklab(51.48% 0.0568 -0.1815)
OKLCH	oklch(51.48% 0.19 287.4)
XYZ	xyz(18.8915, 12.2157, 58.4775)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664BCC #B1CC4B

analogous

#4B71CC #664BCC #A64BCC

triadic

#664BCC #CC664B #4BCC66

tetradic

#664BCC #CC4B71 #B1CC4B #4BCCA6

square

#664BCC #CC4B71 #B1CC4B #4BCCA6

split-complementary

#664BCC #CCA64B #71CC4B

monochromatic

#35237A #4A30AA #664BCC #8F7BDA #B7AAE7

Accessibility & contrast

On white

6.10

#664BCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#664BCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664BCC

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664BCC	#FFFFFF	#000000	##FFFFFF
##664BCC	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065D0

Deuteranopia (green-blind)

#005EC9

Tritanopia (blue-blind)

#416A85

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #664bcc;
/* rgb */ color: rgb(102, 75, 204);
/* oklch */ color: oklch(51.5% 0.190 287.4);

Tailwind

colors: {
  custom: {
    50: '#9a7fdc',
    500: '#664bcc',
    950: '#000000',
  },
}

SCSS

$custom: #664bcc;
$custom-light: #9a7fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#664bcc",
  "rgb": {
    "r": 102,
    "g": 75,
    "b": 204
  },
  "hsl": {
    "h": 252.558,
    "s": 55.844,
    "l": 54.706
  },
  "oklch": {
    "l": 0.51476,
    "c": 0.19016,
    "h": 287.4
  },
  "luminance": 0.12217
}

Semantic roles & 50–950 ramp

primary

#664BCC

secondary

#C9D59E

accent

#DF49C0

background

#FAF7FD

surface

#F3EEFB

border

#CDC9D4

text

#0F0A15

muted

#7F7C83

Preview Lab

Preview with #664BCC

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

Preview Lab → · Contrast checker → · Palette generator →