#664CBB#664CBB

#664CBB is a mid, vivid violet. Relative luminance 0.116; OKLCH L 50.3% C 0.167 H 289.8°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#664CBB
RGB	rgb(102, 76, 187)
HSL	hsl(254, 45%, 52%)
HSV	hsv(254, 59%, 73%)
CMYK	cmyk(45.5%, 59.4%, 0%, 26.7%)
CIE-LAB	lab(40.54, 38.17, -55.09)
CIE-LCH	lch(40.54, 67.02, 304.72°)
OKLab	oklab(50.35% 0.0567 -0.1572)
OKLCH	oklch(50.35% 0.167 289.8)
XYZ	xyz(17.0310, 11.5809, 48.3421)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.25

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664CBB #A1BB4C

analogous

#4C6ABB #664CBB #9E4CBB

triadic

#664CBB #BB664C #4CBB66

tetradic

#664CBB #BB4C6A #A1BB4C #4CBB9E

square

#664CBB #BB4C6A #A1BB4C #4CBB9E

split-complementary

#664CBB #BB9E4C #6ABB4C

monochromatic

#362766 #4D3892 #664CBB #8C78CC #B2A5DD

Accessibility & contrast

On white

6.33

#664CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#664CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CBB

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CBB	#FFFFFF	#000000	##FFFFFF
##664CBB	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#4C657C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #664cbb;
/* rgb */ color: rgb(102, 76, 187);
/* oklch */ color: oklch(50.3% 0.167 289.8);

Tailwind

colors: {
  custom: {
    50: '#987fd0',
    500: '#664cbb',
    950: '#000000',
  },
}

SCSS

$custom: #664cbb;
$custom-light: #987fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#664cbb",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 187
  },
  "hsl": {
    "h": 254.054,
    "s": 44.939,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50346,
    "c": 0.16715,
    "h": 289.8
  },
  "luminance": 0.11582
}

Semantic roles & 50–950 ramp

primary

#664CBB

secondary

#BECA99

accent

#D553B6

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #664CBB

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

Preview Lab → · Contrast checker → · Palette generator →