#668CE9#668CE9

#668CE9 is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.5% C 0.145 H 265.8°. Best body text is #000000 at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#668CE9
RGB	rgb(102, 140, 233)
HSL	hsl(223, 75%, 66%)
HSV	hsv(223, 56%, 91%)
CMYK	cmyk(56.2%, 39.9%, 0%, 8.6%)
CIE-LAB	lab(59.40, 13.77, -51.08)
CIE-LCH	lch(59.40, 52.91, 285.08°)
OKLab	oklab(65.47% -0.0107 -0.145)
OKLCH	oklch(65.47% 0.145 265.8)
XYZ	xyz(29.5606, 27.4618, 80.8179)
Luminance	0.2746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CE9 #E9C366

analogous

#66CEE9 #668CE9 #8166E9

triadic

#668CE9 #E9668C #8CE966

tetradic

#668CE9 #E966CE #E9C366 #66E981

square

#668CE9 #E966CE #E9C366 #66E981

split-complementary

#668CE9 #E98166 #CEE966

monochromatic

#1B49BA #3064E1 #668CE9 #9CB4F1 #D1DCF8

Accessibility & contrast

On white

3.23

#668CE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.49

#668CE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CE9

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CE9	#FFFFFF	#000000	##000000
##668CE9	1.00	3.23	6.49	6.49
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.49	21.00	1.00	1.00
##000000	6.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6595ED

Deuteranopia (green-blind)

#548AE7

Tritanopia (blue-blind)

#03A0AF

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #668ce9;
/* rgb */ color: rgb(102, 140, 233);
/* oklch */ color: oklch(65.5% 0.145 265.8);

Tailwind

colors: {
  custom: {
    50: '#9badf0',
    500: '#668ce9',
    950: '#000000',
  },
}

SCSS

$custom: #668ce9;
$custom-light: #9badf0;
$custom-dark: #000000;

JSON

{
  "hex": "#668ce9",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 233
  },
  "hsl": {
    "h": 222.595,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.65469,
    "c": 0.14541,
    "h": 265.8
  },
  "luminance": 0.27464
}

Semantic roles & 50–950 ramp

primary

#668CE9

secondary

#EBDFC0

accent

#9D0ED7

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668CE9

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

Preview Lab → · Contrast checker → · Palette generator →