#664CEC#664CEC

#664CEC is a mid, highly saturated blue. Relative luminance 0.141; OKLCH L 54.2% C 0.228 H 283.2°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#664CEC
RGB	rgb(102, 76, 236)
HSL	hsl(250, 81%, 61%)
HSV	hsv(250, 68%, 93%)
CMYK	cmyk(56.8%, 67.8%, 0%, 7.5%)
CIE-LAB	lab(44.30, 52.55, -77.12)
CIE-LCH	lch(44.30, 93.33, 304.27°)
OKLab	oklab(54.25% 0.0519 -0.222)
OKLCH	oklch(54.25% 0.228 283.2)
XYZ	xyz(23.1996, 14.0483, 80.8297)
Luminance	0.1405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664CEC #D2EC4C

analogous

#4C82EC #664CEC #B64CEC

triadic

#664CEC #EC664C #4CEC66

tetradic

#664CEC #EC4C82 #D2EC4C #4CECB6

square

#664CEC #EC4C82 #D2EC4C #4CECB6

split-complementary

#664CEC #ECB64C #82EC4C

monochromatic

#2B12AB #3918E3 #664CEC #9583F2 #C5BBF8

Accessibility & contrast

On white

5.51

#664CEC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#664CEC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CEC

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CEC	#FFFFFF	#000000	##FFFFFF
##664CEC	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EF1

Deuteranopia (green-blind)

#0063E9

Tritanopia (blue-blind)

#1C7696

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #664cec;
/* rgb */ color: rgb(102, 76, 236);
/* oklch */ color: oklch(54.2% 0.228 283.2);

Tailwind

colors: {
  custom: {
    50: '#9e80f3',
    500: '#664cec',
    950: '#000000',
  },
}

SCSS

$custom: #664cec;
$custom-light: #9e80f3;
$custom-dark: #000000;

JSON

{
  "hex": "#664cec",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 236
  },
  "hsl": {
    "h": 249.75,
    "s": 80.808,
    "l": 61.176
  },
  "oklch": {
    "l": 0.54247,
    "c": 0.22796,
    "h": 283.2
  },
  "luminance": 0.1405
}

Semantic roles & 50–950 ramp

primary

#664CEC

secondary

#DEE8AC

accent

#DD08BB

background

#FAF7FF

surface

#F4EEFE

border

#CEC9D6

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #664CEC

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

Preview Lab → · Contrast checker → · Palette generator →