#664CE9#664CE9

#664CE9 is a mid, highly saturated blue. Relative luminance 0.139; OKLCH L 54.0% C 0.224 H 283.5°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#664CE9
RGB	rgb(102, 76, 233)
HSL	hsl(250, 78%, 61%)
HSV	hsv(250, 67%, 91%)
CMYK	cmyk(56.2%, 67.4%, 0%, 8.6%)
CIE-LAB	lab(44.05, 51.67, -75.84)
CIE-LCH	lch(44.05, 91.77, 304.27°)
OKLab	oklab(53.99% 0.0523 -0.2182)
OKLCH	oklch(53.99% 0.224 283.5)
XYZ	xyz(22.7674, 13.8754, 78.5535)
Luminance	0.1388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664CE9 #CFE94C

analogous

#4C81E9 #664CE9 #B44CE9

triadic

#664CE9 #E9664C #4CE966

tetradic

#664CE9 #E94C81 #CFE94C #4CE9B4

square

#664CE9 #E94C81 #CFE94C #4CE9B4

split-complementary

#664CE9 #E9B44C #81E94C

monochromatic

#2D14A6 #3B1BDD #664CE9 #9583F0 #C3B9F6

Accessibility & contrast

On white

5.56

#664CE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#664CE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CE9

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CE9	#FFFFFF	#000000	##FFFFFF
##664CE9	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DEE

Deuteranopia (green-blind)

#0063E6

Tritanopia (blue-blind)

#217594

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #664ce9;
/* rgb */ color: rgb(102, 76, 233);
/* oklch */ color: oklch(54.0% 0.224 283.5);

Tailwind

colors: {
  custom: {
    50: '#9e80f1',
    500: '#664ce9',
    950: '#000000',
  },
}

SCSS

$custom: #664ce9;
$custom-light: #9e80f1;
$custom-dark: #000000;

JSON

{
  "hex": "#664ce9",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 233
  },
  "hsl": {
    "h": 249.936,
    "s": 78.109,
    "l": 60.588
  },
  "oklch": {
    "l": 0.53992,
    "c": 0.22439,
    "h": 283.5
  },
  "luminance": 0.13877
}

Semantic roles & 50–950 ramp

primary

#664CE9

secondary

#DCE6AB

accent

#DA0BB8

background

#FAF7FE

surface

#F4EEFD

border

#CEC9D5

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #664CE9

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

Preview Lab → · Contrast checker → · Palette generator →