#668FE9#668FE9

#668FE9 is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.1% C 0.142 H 264.4°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#668FE9
RGB	rgb(102, 143, 233)
HSL	hsl(221, 75%, 66%)
HSV	hsv(221, 56%, 91%)
CMYK	cmyk(56.2%, 38.6%, 0%, 8.6%)
CIE-LAB	lab(60.20, 11.99, -49.81)
CIE-LCH	lch(60.20, 51.23, 283.53°)
OKLab	oklab(66.09% -0.0139 -0.1413)
OKLCH	oklch(66.09% 0.142 264.4)
XYZ	xyz(30.0049, 28.3505, 80.9660)
Luminance	0.2835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668FE9 #E9C066

analogous

#66D1E9 #668FE9 #7E66E9

triadic

#668FE9 #E9668F #8FE966

tetradic

#668FE9 #E966D1 #E9C066 #66E97E

square

#668FE9 #E966D1 #E9C066 #66E97E

split-complementary

#668FE9 #E97E66 #D1E966

monochromatic

#1B4DBA #3068E1 #668FE9 #9CB6F1 #D1DDF8

Accessibility & contrast

On white

3.15

#668FE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#668FE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FE9

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668FE9	#FFFFFF	#000000	##000000
##668FE9	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6998ED

Deuteranopia (green-blind)

#598CE7

Tritanopia (blue-blind)

#00A3B1

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #668fe9;
/* rgb */ color: rgb(102, 143, 233);
/* oklch */ color: oklch(66.1% 0.142 264.4);

Tailwind

colors: {
  custom: {
    50: '#9baff0',
    500: '#668fe9',
    950: '#000000',
  },
}

SCSS

$custom: #668fe9;
$custom-light: #9baff0;
$custom-dark: #000000;

JSON

{
  "hex": "#668fe9",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 233
  },
  "hsl": {
    "h": 221.221,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.6609,
    "c": 0.14195,
    "h": 264.4
  },
  "luminance": 0.28353
}

Semantic roles & 50–950 ramp

primary

#668FE9

secondary

#EBDEC0

accent

#980ED7

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1016

muted

#7F7F84

Preview Lab

Preview with #668FE9

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

Preview Lab → · Contrast checker → · Palette generator →