#664BBB#664BBB

#664BBB is a mid, vivid violet. Relative luminance 0.114; OKLCH L 50.2% C 0.169 H 290.1°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#664BBB
RGB	rgb(102, 75, 187)
HSL	hsl(254, 45%, 51%)
HSV	hsv(254, 60%, 73%)
CMYK	cmyk(45.5%, 59.9%, 0%, 26.7%)
CIE-LAB	lab(40.32, 38.75, -55.45)
CIE-LCH	lch(40.32, 67.65, 304.95°)
OKLab	oklab(50.18% 0.0579 -0.1583)
OKLCH	oklch(50.18% 0.169 290.1)
XYZ	xyz(16.9627, 11.4442, 48.3193)
Luminance	0.1144 (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

#664BBB #A0BB4B

analogous

#4B68BB #664BBB #9E4BBB

triadic

#664BBB #BB664B #4BBB66

tetradic

#664BBB #BB4B68 #A0BB4B #4BBB9E

square

#664BBB #BB4B68 #A0BB4B #4BBB9E

split-complementary

#664BBB #BB9E4B #68BB4B

monochromatic

#352665 #4D3792 #664BBB #8C77CC #B2A4DD

Accessibility & contrast

On white

6.38

#664BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#664BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664BBB

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664BBB	#FFFFFF	#000000	##FFFFFF
##664BBB	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BF

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#4C647C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #664bbb;
/* rgb */ color: rgb(102, 75, 187);
/* oklch */ color: oklch(50.2% 0.169 290.1);

Tailwind

colors: {
  custom: {
    50: '#987ed0',
    500: '#664bbb',
    950: '#000000',
  },
}

SCSS

$custom: #664bbb;
$custom-light: #987ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#664bbb",
  "rgb": {
    "r": 102,
    "g": 75,
    "b": 187
  },
  "hsl": {
    "h": 254.464,
    "s": 45.161,
    "l": 51.373
  },
  "oklch": {
    "l": 0.50182,
    "c": 0.16855,
    "h": 290.1
  },
  "luminance": 0.11445
}

Semantic roles & 50–950 ramp

primary

#664BBB

secondary

#BECA98

accent

#D553B6

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #664BBB

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

Preview Lab → · Contrast checker → · Palette generator →