#668FF5#668FF5

#668FF5 is a light, vivid blue. Relative luminance 0.291; OKLCH L 66.8% C 0.158 H 265.8°. Best body text is #000000 at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#668FF5
RGB	rgb(102, 143, 245)
HSL	hsl(223, 88%, 68%)
HSV	hsv(223, 58%, 96%)
CMYK	cmyk(58.4%, 41.6%, 0%, 3.9%)
CIE-LAB	lab(60.83, 15.85, -55.43)
CIE-LCH	lch(60.83, 57.66, 285.95°)
OKLab	oklab(66.78% -0.0116 -0.1577)
OKLCH	oklch(66.78% 0.158 265.8)
XYZ	xyz(31.7778, 29.0596, 90.3030)
Luminance	0.2906 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668FF5 #F5CC66

analogous

#66D7F5 #668FF5 #8466F5

triadic

#668FF5 #F5668F #8FF566

tetradic

#668FF5 #F566D7 #F5CC66 #66F584

square

#668FF5 #F566D7 #F5CC66 #66F584

split-complementary

#668FF5 #F58466 #D7F566

monochromatic

#0E46D3 #2D65F1 #668FF5 #9FB9F9 #D9E3FD

Accessibility & contrast

On white

3.08

#668FF5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.81

#668FF5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FF5

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668FF5	#FFFFFF	#000000	##000000
##668FF5	1.00	3.08	6.81	6.81
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.81	21.00	1.00	1.00
##000000	6.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#629AF9

Deuteranopia (green-blind)

#4E8DF3

Tritanopia (blue-blind)

#00A6B6

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #668ff5;
/* rgb */ color: rgb(102, 143, 245);
/* oklch */ color: oklch(66.8% 0.158 265.8);

Tailwind

colors: {
  custom: {
    50: '#9caff9',
    500: '#668ff5',
    950: '#000000',
  },
}

SCSS

$custom: #668ff5;
$custom-light: #9caff9;
$custom-dark: #000000;

JSON

{
  "hex": "#668ff5",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 245
  },
  "hsl": {
    "h": 222.797,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.66781,
    "c": 0.15817,
    "h": 265.8
  },
  "luminance": 0.29062
}

Semantic roles & 50–950 ramp

primary

#668FF5

secondary

#F1E5C6

accent

#A301E4

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668FF5

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

Preview Lab → · Contrast checker → · Palette generator →