#668CFB#668CFB

#668CFB is a light, vivid blue. Relative luminance 0.285; OKLCH L 66.5% C 0.170 H 267.5°. Best body text is #000000 at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#668CFB
RGB	rgb(102, 140, 251)
HSL	hsl(225, 95%, 69%)
HSV	hsv(225, 59%, 98%)
CMYK	cmyk(59.4%, 44.2%, 0%, 1.6%)
CIE-LAB	lab(60.38, 19.58, -59.47)
CIE-LCH	lch(60.38, 62.61, 288.23°)
OKLab	oklab(66.54% -0.0075 -0.1696)
OKLCH	oklch(66.54% 0.17 267.5)
XYZ	xyz(32.2643, 28.5433, 95.0572)
Luminance	0.2855 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CFB #FBD566

analogous

#66D7FB #668CFB #8B66FB

triadic

#668CFB #FB668C #8CFB66

tetradic

#668CFB #FB66D7 #FBD566 #66FB8B

square

#668CFB #FB66D7 #FBD566 #66FB8B

split-complementary

#668CFB #FB8B66 #D7FB66

monochromatic

#063EE1 #2A5FF9 #668CFB #A2B9FD #DDE6FE

Accessibility & contrast

On white

3.13

#668CFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.71

#668CFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CFB

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CFB	#FFFFFF	#000000	##000000
##668CFB	1.00	3.13	6.71	6.71
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.71	21.00	1.00	1.00
##000000	6.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5899FF

Deuteranopia (green-blind)

#428BF9

Tritanopia (blue-blind)

#00A5B7

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #668cfb;
/* rgb */ color: rgb(102, 140, 251);
/* oklch */ color: oklch(66.5% 0.170 267.5);

Tailwind

colors: {
  custom: {
    50: '#9dadfd',
    500: '#668cfb',
    950: '#000000',
  },
}

SCSS

$custom: #668cfb;
$custom-light: #9dadfd;
$custom-dark: #000000;

JSON

{
  "hex": "#668cfb",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 251
  },
  "hsl": {
    "h": 224.698,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.66536,
    "c": 0.16978,
    "h": 267.5
  },
  "luminance": 0.28546
}

Semantic roles & 50–950 ramp

primary

#668CFB

secondary

#F4E9C9

accent

#AB00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #668CFB

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

Preview Lab → · Contrast checker → · Palette generator →