#664DE7#664DE7

#664DE7 is a mid, highly saturated blue. Relative luminance 0.139; OKLCH L 54.0% C 0.221 H 283.6°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#664DE7
RGB	rgb(102, 77, 231)
HSL	hsl(250, 76%, 60%)
HSV	hsv(250, 67%, 91%)
CMYK	cmyk(55.8%, 66.7%, 0%, 9.4%)
CIE-LAB	lab(44.09, 50.54, -74.64)
CIE-LCH	lch(44.09, 90.14, 304.10°)
OKLab	oklab(53.97% 0.0518 -0.2147)
OKLCH	oklch(53.97% 0.221 283.6)
XYZ	xyz(22.5527, 13.9007, 77.0805)
Luminance	0.1390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664DE7 #CEE74D

analogous

#4D81E7 #664DE7 #B34DE7

triadic

#664DE7 #E7664D #4DE766

tetradic

#664DE7 #E74D81 #CEE74D #4DE7B3

square

#664DE7 #E74D81 #CEE74D #4DE7B3

split-complementary

#664DE7 #E7B34D #81E74D

monochromatic

#2D16A4 #3C1DD9 #664DE7 #9483EE #C3B9F6

Accessibility & contrast

On white

5.55

#664DE7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#664DE7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664DE7

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664DE7	#FFFFFF	#000000	##FFFFFF
##664DE7	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DEC

Deuteranopia (green-blind)

#0063E4

Tritanopia (blue-blind)

#257594

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #664de7;
/* rgb */ color: rgb(102, 77, 231);
/* oklch */ color: oklch(54.0% 0.221 283.6);

Tailwind

colors: {
  custom: {
    50: '#9e81f0',
    500: '#664de7',
    950: '#000000',
  },
}

SCSS

$custom: #664de7;
$custom-light: #9e81f0;
$custom-dark: #000000;

JSON

{
  "hex": "#664de7",
  "rgb": {
    "r": 102,
    "g": 77,
    "b": 231
  },
  "hsl": {
    "h": 249.74,
    "s": 76.238,
    "l": 60.392
  },
  "oklch": {
    "l": 0.53967,
    "c": 0.22087,
    "h": 283.6
  },
  "luminance": 0.13902
}

Semantic roles & 50–950 ramp

primary

#664DE7

secondary

#DCE5AA

accent

#D80DB7

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #664DE7

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

Preview Lab → · Contrast checker → · Palette generator →