#664CF7#664CF7

#664CF7 is a mid, highly saturated blue. Relative luminance 0.147; OKLCH L 55.2% C 0.241 H 282.0°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#664CF7
RGB	rgb(102, 76, 247)
HSL	hsl(249, 91%, 63%)
HSV	hsv(249, 69%, 97%)
CMYK	cmyk(58.7%, 69.2%, 0%, 3.1%)
CIE-LAB	lab(45.23, 55.78, -81.78)
CIE-LCH	lch(45.23, 98.99, 304.30°)
OKLab	oklab(55.2% 0.0501 -0.2356)
OKLCH	oklch(55.2% 0.241 282)
XYZ	xyz(24.8472, 14.7074, 89.5071)
Luminance	0.1471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664CF7 #DDF74C

analogous

#4C87F7 #664CF7 #BB4CF7

triadic

#664CF7 #F7664C #4CF766

tetradic

#664CF7 #F74C87 #DDF74C #4CF7BB

square

#664CF7 #F74C87 #DDF74C #4CF7BB

split-complementary

#664CF7 #F7BB4C #87F74C

monochromatic

#2409C0 #3411F4 #664CF7 #9887FA #CAC1FC

Accessibility & contrast

On white

5.33

#664CF7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#664CF7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CF7

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CF7	#FFFFFF	#000000	##FFFFFF
##664CF7	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071FC

Deuteranopia (green-blind)

#0065F4

Tritanopia (blue-blind)

#007A9C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #664cf7;
/* rgb */ color: rgb(102, 76, 247);
/* oklch */ color: oklch(55.2% 0.241 282.0);

Tailwind

colors: {
  custom: {
    50: '#a080fb',
    500: '#664cf7',
    950: '#000000',
  },
}

SCSS

$custom: #664cf7;
$custom-light: #a080fb;
$custom-dark: #000000;

JSON

{
  "hex": "#664cf7",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 247
  },
  "hsl": {
    "h": 249.123,
    "s": 91.444,
    "l": 63.333
  },
  "oklch": {
    "l": 0.55196,
    "c": 0.2409,
    "h": 282
  },
  "luminance": 0.14709
}

Semantic roles & 50–950 ramp

primary

#664CF7

secondary

#E5EEB1

accent

#E600C3

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#100A18

muted

#7F7C86

Preview Lab

Preview with #664CF7

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

Preview Lab → · Contrast checker → · Palette generator →