#668CE1#668CE1

#668CE1 is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.0% C 0.134 H 264.7°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#668CE1
RGB	rgb(102, 140, 225)
HSL	hsl(221, 67%, 64%)
HSV	hsv(221, 55%, 88%)
CMYK	cmyk(54.7%, 37.8%, 0%, 11.8%)
CIE-LAB	lab(58.99, 11.22, -47.29)
CIE-LCH	lch(58.99, 48.60, 283.34°)
OKLab	oklab(65.02% -0.0124 -0.1339)
OKLCH	oklch(65.02% 0.134 264.7)
XYZ	xyz(28.4436, 27.0150, 74.9351)
Luminance	0.2702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CE1 #E1BB66

analogous

#66CAE1 #668CE1 #7E66E1

triadic

#668CE1 #E1668C #8CE166

tetradic

#668CE1 #E166CA #E1BB66 #66E17E

square

#668CE1 #E166CA #E1BB66 #66E17E

split-complementary

#668CE1 #E17E66 #CAE166

monochromatic

#224CAB #3366D7 #668CE1 #99B2EB #CCD9F5

Accessibility & contrast

On white

3.28

#668CE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#668CE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CE1

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CE1	#FFFFFF	#000000	##000000
##668CE1	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6994E4

Deuteranopia (green-blind)

#5A89DF

Tritanopia (blue-blind)

#1D9FAC

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #668ce1;
/* rgb */ color: rgb(102, 140, 225);
/* oklch */ color: oklch(65.0% 0.134 264.7);

Tailwind

colors: {
  custom: {
    50: '#9aadeb',
    500: '#668ce1',
    950: '#000000',
  },
}

SCSS

$custom: #668ce1;
$custom-light: #9aadeb;
$custom-dark: #000000;

JSON

{
  "hex": "#668ce1",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 225
  },
  "hsl": {
    "h": 221.463,
    "s": 67.213,
    "l": 64.118
  },
  "oklch": {
    "l": 0.65017,
    "c": 0.13449,
    "h": 264.7
  },
  "luminance": 0.27017
}

Semantic roles & 50–950 ramp

primary

#668CE1

secondary

#E7DABC

accent

#9616CF

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #668CE1

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

Preview Lab → · Contrast checker → · Palette generator →