#668CEA#668CEA

#668CEA is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.5% C 0.147 H 265.9°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#668CEA
RGB	rgb(102, 140, 234)
HSL	hsl(223, 76%, 66%)
HSV	hsv(223, 56%, 92%)
CMYK	cmyk(56.4%, 40.2%, 0%, 8.2%)
CIE-LAB	lab(59.45, 14.09, -51.56)
CIE-LCH	lch(59.45, 53.45, 285.28°)
OKLab	oklab(65.53% -0.0105 -0.1464)
OKLCH	oklch(65.53% 0.147 265.9)
XYZ	xyz(29.7038, 27.5191, 81.5724)
Luminance	0.2752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CEA #EAC466

analogous

#66CEEA #668CEA #8266EA

triadic

#668CEA #EA668C #8CEA66

tetradic

#668CEA #EA66CE #EAC466 #66EA82

square

#668CEA #EA66CE #EAC466 #66EA82

split-complementary

#668CEA #EA8266 #CEEA66

monochromatic

#1A48BC #3064E3 #668CEA #9CB4F1 #D2DDF9

Accessibility & contrast

On white

3.23

#668CEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#668CEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CEA

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CEA	#FFFFFF	#000000	##000000
##668CEA	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6496EE

Deuteranopia (green-blind)

#538AE8

Tritanopia (blue-blind)

#00A1B0

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #668cea;
/* rgb */ color: rgb(102, 140, 234);
/* oklch */ color: oklch(65.5% 0.147 265.9);

Tailwind

colors: {
  custom: {
    50: '#9badf1',
    500: '#668cea',
    950: '#000000',
  },
}

SCSS

$custom: #668cea;
$custom-light: #9badf1;
$custom-dark: #000000;

JSON

{
  "hex": "#668cea",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 234
  },
  "hsl": {
    "h": 222.727,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.65526,
    "c": 0.14678,
    "h": 265.9
  },
  "luminance": 0.27521
}

Semantic roles & 50–950 ramp

primary

#668CEA

secondary

#ECDFC0

accent

#9E0DD8

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668CEA

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

Preview Lab → · Contrast checker → · Palette generator →