#668BFB#668BFB

#668BFB is a light, vivid blue. Relative luminance 0.283; OKLCH L 66.3% C 0.171 H 267.8°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#668BFB
RGB	rgb(102, 139, 251)
HSL	hsl(225, 95%, 69%)
HSV	hsv(225, 59%, 98%)
CMYK	cmyk(59.4%, 44.6%, 0%, 1.6%)
CIE-LAB	lab(60.12, 20.18, -59.88)
CIE-LCH	lch(60.12, 63.19, 288.62°)
OKLab	oklab(66.34% -0.0065 -0.1708)
OKLCH	oklch(66.34% 0.171 267.8)
XYZ	xyz(32.1188, 28.2524, 95.0087)
Luminance	0.2826 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BFB #FBD666

analogous

#66D5FB #668BFB #8C66FB

triadic

#668BFB #FB668B #8BFB66

tetradic

#668BFB #FB66D5 #FBD666 #66FB8C

square

#668BFB #FB66D5 #FBD666 #66FB8C

split-complementary

#668BFB #FB8C66 #D5FB66

monochromatic

#063CE1 #2A5EF9 #668BFB #A2B8FD #DDE5FE

Accessibility & contrast

On white

3.16

#668BFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#668BFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BFB

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BFB	#FFFFFF	#000000	##000000
##668BFB	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5798FF

Deuteranopia (green-blind)

#408BF9

Tritanopia (blue-blind)

#00A4B7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #668bfb;
/* rgb */ color: rgb(102, 139, 251);
/* oklch */ color: oklch(66.3% 0.171 267.8);

Tailwind

colors: {
  custom: {
    50: '#9dacfd',
    500: '#668bfb',
    950: '#000000',
  },
}

SCSS

$custom: #668bfb;
$custom-light: #9dacfd;
$custom-dark: #000000;

JSON

{
  "hex": "#668bfb",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 251
  },
  "hsl": {
    "h": 225.101,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.66337,
    "c": 0.17096,
    "h": 267.8
  },
  "luminance": 0.28255
}

Semantic roles & 50–950 ramp

primary

#668BFB

secondary

#F4E9C9

accent

#AD00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #668BFB

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

Preview Lab → · Contrast checker → · Palette generator →