#664FDA#664FDA

#664FDA is a mid, highly saturated blue. Relative luminance 0.135; OKLCH L 53.2% C 0.203 H 284.7°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#664FDA
RGB	rgb(102, 79, 218)
HSL	hsl(250, 65%, 58%)
HSV	hsv(250, 64%, 85%)
CMYK	cmyk(53.2%, 63.8%, 0%, 14.5%)
CIE-LAB	lab(43.47, 45.56, -68.26)
CIE-LCH	lch(43.47, 82.07, 303.72°)
OKLab	oklab(53.2% 0.0515 -0.196)
OKLCH	oklch(53.2% 0.203 284.7)
XYZ	xyz(20.9265, 13.4775, 67.8148)
Luminance	0.1348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FDA #C3DA4F

analogous

#4F7DDA #664FDA #AB4FDA

triadic

#664FDA #DA664F #4FDA66

tetradic

#664FDA #DA4F7D #C3DA4F #4FDAAB

square

#664FDA #DA4F7D #C3DA4F #4FDAAB

split-complementary

#664FDA #DAAB4F #7DDA4F

monochromatic

#311E90 #4229C3 #664FDA #9282E5 #BEB4EF

Accessibility & contrast

On white

5.68

#664FDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#664FDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FDA

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FDA	#FFFFFF	#000000	##FFFFFF
##664FDA	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BDE

Deuteranopia (green-blind)

#0062D7

Tritanopia (blue-blind)

#35718D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #664fda;
/* rgb */ color: rgb(102, 79, 218);
/* oklch */ color: oklch(53.2% 0.203 284.7);

Tailwind

colors: {
  custom: {
    50: '#9b82e6',
    500: '#664fda',
    950: '#000000',
  },
}

SCSS

$custom: #664fda;
$custom-light: #9b82e6;
$custom-dark: #000000;

JSON

{
  "hex": "#664fda",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 218
  },
  "hsl": {
    "h": 249.928,
    "s": 65.258,
    "l": 58.235
  },
  "oklch": {
    "l": 0.53202,
    "c": 0.20262,
    "h": 284.7
  },
  "luminance": 0.13479
}

Semantic roles & 50–950 ramp

primary

#664FDA

secondary

#D5DEA7

accent

#E840CC

background

#FAF8FE

surface

#F4EFFC

border

#CECAD5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #664FDA

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

Preview Lab → · Contrast checker → · Palette generator →