#668CDF#668CDF

#668CDF is a light, vivid blue. Relative luminance 0.269; OKLCH L 64.9% C 0.132 H 264.4°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#668CDF
RGB	rgb(102, 140, 223)
HSL	hsl(221, 65%, 64%)
HSV	hsv(221, 54%, 87%)
CMYK	cmyk(54.3%, 37.2%, 0%, 12.5%)
CIE-LAB	lab(58.89, 10.58, -46.33)
CIE-LCH	lch(58.89, 47.53, 282.87°)
OKLab	oklab(64.91% -0.0128 -0.1311)
OKLCH	oklch(64.91% 0.132 264.4)
XYZ	xyz(28.1724, 26.9065, 73.5066)
Luminance	0.2691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CDF #DFB966

analogous

#66C8DF #668CDF #7C66DF

triadic

#668CDF #DF668C #8CDF66

tetradic

#668CDF #DF66C8 #DFB966 #66DF7C

square

#668CDF #DF66C8 #DFB966 #66DF7C

split-complementary

#668CDF #DF7C66 #C8DF66

monochromatic

#234DA8 #3366D4 #668CDF #99B2EA #CBD8F4

Accessibility & contrast

On white

3.29

#668CDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#668CDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CDF

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CDF	#FFFFFF	#000000	##000000
##668CDF	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A94E2

Deuteranopia (green-blind)

#5C89DD

Tritanopia (blue-blind)

#209EAB

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #668cdf;
/* rgb */ color: rgb(102, 140, 223);
/* oklch */ color: oklch(64.9% 0.132 264.4);

Tailwind

colors: {
  custom: {
    50: '#99ade9',
    500: '#668cdf',
    950: '#000000',
  },
}

SCSS

$custom: #668cdf;
$custom-light: #99ade9;
$custom-dark: #000000;

JSON

{
  "hex": "#668cdf",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 223
  },
  "hsl": {
    "h": 221.157,
    "s": 65.405,
    "l": 63.725
  },
  "oklch": {
    "l": 0.64906,
    "c": 0.13176,
    "h": 264.4
  },
  "luminance": 0.26909
}

Semantic roles & 50–950 ramp

primary

#668CDF

secondary

#E6D8BB

accent

#9418CD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #668CDF

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

Preview Lab → · Contrast checker → · Palette generator →