#668CDC#668CDC

#668CDC is a light, vivid blue. Relative luminance 0.267; OKLCH L 64.7% C 0.128 H 263.9°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#668CDC
RGB	rgb(102, 140, 220)
HSL	hsl(221, 63%, 63%)
HSV	hsv(221, 54%, 86%)
CMYK	cmyk(53.6%, 36.4%, 0%, 13.7%)
CIE-LAB	lab(58.74, 9.64, -44.89)
CIE-LCH	lch(58.74, 45.92, 282.11°)
OKLab	oklab(64.74% -0.0135 -0.1269)
OKLCH	oklch(64.74% 0.128 263.9)
XYZ	xyz(27.7715, 26.7462, 71.3954)
Luminance	0.2675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CDC #DCB666

analogous

#66C7DC #668CDC #7B66DC

triadic

#668CDC #DC668C #8CDC66

tetradic

#668CDC #DC66C7 #DCB666 #66DC7B

square

#668CDC #DC66C7 #DCB666 #66DC7B

split-complementary

#668CDC #DC7B66 #C7DC66

monochromatic

#254EA2 #3467D1 #668CDC #98B1E7 #CAD7F3

Accessibility & contrast

On white

3.31

#668CDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.35

#668CDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CDC

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CDC	#FFFFFF	#000000	##000000
##668CDC	1.00	3.31	6.35	6.35
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.35	21.00	1.00	1.00
##000000	6.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C93DF

Deuteranopia (green-blind)

#5E88DA

Tritanopia (blue-blind)

#259DAA

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #668cdc;
/* rgb */ color: rgb(102, 140, 220);
/* oklch */ color: oklch(64.7% 0.128 263.9);

Tailwind

colors: {
  custom: {
    50: '#99ade7',
    500: '#668cdc',
    950: '#000000',
  },
}

SCSS

$custom: #668cdc;
$custom-light: #99ade7;
$custom-dark: #000000;

JSON

{
  "hex": "#668cdc",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 220
  },
  "hsl": {
    "h": 220.678,
    "s": 62.766,
    "l": 63.137
  },
  "oklch": {
    "l": 0.64742,
    "c": 0.12765,
    "h": 263.9
  },
  "luminance": 0.26748
}

Semantic roles & 50–950 ramp

primary

#668CDC

secondary

#E4D6BA

accent

#921BCB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #668CDC

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

Preview Lab → · Contrast checker → · Palette generator →