#664ECB#664ECB

#664ECB is a mid, vivid violet. Relative luminance 0.126; OKLCH L 51.9% C 0.185 H 286.9°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#664ECB
RGB	rgb(102, 78, 203)
HSL	hsl(252, 55%, 55%)
HSV	hsv(252, 62%, 80%)
CMYK	cmyk(49.8%, 61.6%, 0%, 20.4%)
CIE-LAB	lab(42.13, 41.69, -61.82)
CIE-LCH	lch(42.13, 74.57, 303.99°)
OKLab	oklab(51.87% 0.0538 -0.1771)
OKLCH	oklch(51.87% 0.185 286.9)
XYZ	xyz(18.9802, 12.5845, 57.9173)
Luminance	0.1258 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664ECB #B3CB4E

analogous

#4E74CB #664ECB #A44ECB

triadic

#664ECB #CB664E #4ECB66

tetradic

#664ECB #CB4E74 #B3CB4E #4ECBA4

square

#664ECB #CB4E74 #B3CB4E #4ECBA4

split-complementary

#664ECB #CBA44E #74CB4E

monochromatic

#35247B #4932AA #664ECB #8F7DD9 #B8ADE7

Accessibility & contrast

On white

5.97

#664ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#664ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664ECB

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664ECB	#FFFFFF	#000000	##FFFFFF
##664ECB	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CF

Deuteranopia (green-blind)

#0060C8

Tritanopia (blue-blind)

#426C85

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #664ecb;
/* rgb */ color: rgb(102, 78, 203);
/* oklch */ color: oklch(51.9% 0.185 286.9);

Tailwind

colors: {
  custom: {
    50: '#9981dc',
    500: '#664ecb',
    950: '#000000',
  },
}

SCSS

$custom: #664ecb;
$custom-light: #9981dc;
$custom-dark: #000000;

JSON

{
  "hex": "#664ecb",
  "rgb": {
    "r": 102,
    "g": 78,
    "b": 203
  },
  "hsl": {
    "h": 251.52,
    "s": 54.585,
    "l": 55.098
  },
  "oklch": {
    "l": 0.5187,
    "c": 0.18503,
    "h": 286.9
  },
  "luminance": 0.12585
}

Semantic roles & 50–950 ramp

primary

#664ECB

secondary

#CBD5A0

accent

#DE4AC2

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #664ECB

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

Preview Lab → · Contrast checker → · Palette generator →