#664EE9#664EE9

#664EE9 is a mid, highly saturated blue. Relative luminance 0.142; OKLCH L 54.3% C 0.222 H 283.2°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#664EE9
RGB	rgb(102, 78, 233)
HSL	hsl(249, 78%, 61%)
HSV	hsv(249, 67%, 91%)
CMYK	cmyk(56.2%, 66.5%, 0%, 8.6%)
CIE-LAB	lab(44.45, 50.58, -75.18)
CIE-LCH	lch(44.45, 90.61, 303.93°)
OKLab	oklab(54.28% 0.0507 -0.2163)
OKLCH	oklch(54.28% 0.222 283.2)
XYZ	xyz(22.9073, 14.1553, 78.6002)
Luminance	0.1416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664EE9 #D1E94E

analogous

#4E83E9 #664EE9 #B34EE9

triadic

#664EE9 #E9664E #4EE966

tetradic

#664EE9 #E94E83 #D1E94E #4EE9B3

square

#664EE9 #E94E83 #D1E94E #4EE9B3

split-complementary

#664EE9 #E9B34E #83E94E

monochromatic

#2C15A8 #3A1CDE #664EE9 #9584F0 #C4BBF7

Accessibility & contrast

On white

5.48

#664EE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#664EE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664EE9

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664EE9	#FFFFFF	#000000	##FFFFFF
##664EE9	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EEE

Deuteranopia (green-blind)

#0064E6

Tritanopia (blue-blind)

#217695

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #664ee9;
/* rgb */ color: rgb(102, 78, 233);
/* oklch */ color: oklch(54.3% 0.222 283.2);

Tailwind

colors: {
  custom: {
    50: '#9e81f1',
    500: '#664ee9',
    950: '#000000',
  },
}

SCSS

$custom: #664ee9;
$custom-light: #9e81f1;
$custom-dark: #000000;

JSON

{
  "hex": "#664ee9",
  "rgb": {
    "r": 102,
    "g": 78,
    "b": 233
  },
  "hsl": {
    "h": 249.29,
    "s": 77.889,
    "l": 60.98
  },
  "oklch": {
    "l": 0.5428,
    "c": 0.22213,
    "h": 283.2
  },
  "luminance": 0.14157
}

Semantic roles & 50–950 ramp

primary

#664EE9

secondary

#DEE7AC

accent

#DA0BBA

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #664EE9

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

Preview Lab → · Contrast checker → · Palette generator →