#664BB2#664BB2

#664BB2 is a mid, vivid violet. Relative luminance 0.111; OKLCH L 49.5% C 0.157 H 291.7°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#664BB2
RGB	rgb(102, 75, 178)
HSL	hsl(256, 41%, 50%)
HSV	hsv(256, 58%, 70%)
CMYK	cmyk(42.7%, 57.9%, 0%, 30.2%)
CIE-LAB	lab(39.70, 36.16, -51.16)
CIE-LCH	lch(39.70, 62.65, 305.25°)
OKLab	oklab(49.53% 0.0581 -0.1457)
OKLCH	oklch(49.53% 0.157 291.7)
XYZ	xyz(16.0292, 11.0708, 43.4032)
Luminance	0.1107 (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

#664BB2 #97B24B

analogous

#4B64B2 #664BB2 #994BB2

triadic

#664BB2 #B2664B #4BB266

tetradic

#664BB2 #B24B64 #97B24B #4BB299

square

#664BB2 #B24B64 #97B24B #4BB299

split-complementary

#664BB2 #B2994B #64B24B

monochromatic

#35275C #4D3987 #664BB2 #8A75C5 #AFA0D7

Accessibility & contrast

On white

6.53

#664BB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#664BB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664BB2

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664BB2	#FFFFFF	#000000	##FFFFFF
##664BB2	1.00	6.53	3.21	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A5FB5

Deuteranopia (green-blind)

#165BB0

Tritanopia (blue-blind)

#516177

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #664bb2;
/* rgb */ color: rgb(102, 75, 178);
/* oklch */ color: oklch(49.5% 0.157 291.7);

Tailwind

colors: {
  custom: {
    50: '#977eca',
    500: '#664bb2',
    950: '#000000',
  },
}

SCSS

$custom: #664bb2;
$custom-light: #977eca;
$custom-dark: #000000;

JSON

{
  "hex": "#664bb2",
  "rgb": {
    "r": 102,
    "g": 75,
    "b": 178
  },
  "hsl": {
    "h": 255.728,
    "s": 40.711,
    "l": 49.608
  },
  "oklch": {
    "l": 0.4953,
    "c": 0.15682,
    "h": 291.7
  },
  "luminance": 0.11071
}

Semantic roles & 50–950 ramp

primary

#664BB2

secondary

#B8C495

accent

#D157B1

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #664BB2

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

Preview Lab → · Contrast checker → · Palette generator →