#668CF8#668CF8

#668CF8 is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.4% C 0.166 H 267.2°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#668CF8
RGB	rgb(102, 140, 248)
HSL	hsl(224, 91%, 69%)
HSV	hsv(224, 59%, 97%)
CMYK	cmyk(58.9%, 43.5%, 0%, 2.7%)
CIE-LAB	lab(60.21, 18.61, -58.08)
CIE-LCH	lch(60.21, 60.99, 287.76°)
OKLab	oklab(66.35% -0.008 -0.1655)
OKLCH	oklch(66.35% 0.166 267.2)
XYZ	xyz(31.7951, 28.3556, 92.5864)
Luminance	0.2836 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CF8 #F8D266

analogous

#66D5F8 #668CF8 #8966F8

triadic

#668CF8 #F8668C #8CF866

tetradic

#668CF8 #F866D5 #F8D266 #66F889

square

#668CF8 #F866D5 #F8D266 #66F889

split-complementary

#668CF8 #F88966 #D5F866

monochromatic

#0A40DA #2B60F5 #668CF8 #A1B8FB #DBE4FD

Accessibility & contrast

On white

3.15

#668CF8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#668CF8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CF8

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CF8	#FFFFFF	#000000	##000000
##668CF8	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)

#5B98FC

Deuteranopia (green-blind)

#468BF6

Tritanopia (blue-blind)

#00A4B6

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #668cf8;
/* rgb */ color: rgb(102, 140, 248);
/* oklch */ color: oklch(66.4% 0.166 267.2);

Tailwind

colors: {
  custom: {
    50: '#9dadfb',
    500: '#668cf8',
    950: '#000000',
  },
}

SCSS

$custom: #668cf8;
$custom-light: #9dadfb;
$custom-dark: #000000;

JSON

{
  "hex": "#668cf8",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 248
  },
  "hsl": {
    "h": 224.384,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.66354,
    "c": 0.16574,
    "h": 267.2
  },
  "luminance": 0.28358
}

Semantic roles & 50–950 ramp

primary

#668CF8

secondary

#F3E7C7

accent

#AA00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668CF8

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

Preview Lab → · Contrast checker → · Palette generator →