#668CF4#668CF4

#668CF4 is a light, vivid blue. Relative luminance 0.281; OKLCH L 66.1% C 0.160 H 266.9°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#668CF4
RGB	rgb(102, 140, 244)
HSL	hsl(224, 87%, 68%)
HSV	hsv(224, 58%, 96%)
CMYK	cmyk(58.2%, 42.6%, 0%, 4.3%)
CIE-LAB	lab(59.99, 17.31, -56.23)
CIE-LCH	lch(59.99, 58.84, 287.11°)
OKLab	oklab(66.11% -0.0087 -0.1601)
OKLCH	oklch(66.11% 0.16 266.9)
XYZ	xyz(31.1812, 28.1101, 89.3530)
Luminance	0.2811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CF4 #F4CE66

analogous

#66D3F4 #668CF4 #8766F4

triadic

#668CF4 #F4668C #8CF466

tetradic

#668CF4 #F466D3 #F4CE66 #66F487

square

#668CF4 #F466D3 #F4CE66 #66F487

split-complementary

#668CF4 #F48766 #D3F466

monochromatic

#0F43D1 #2D61F0 #668CF4 #9FB7F8 #D8E2FC

Accessibility & contrast

On white

3.17

#668CF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#668CF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CF4

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CF4	#FFFFFF	#000000	##000000
##668CF4	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E97F8

Deuteranopia (green-blind)

#4A8BF2

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #668cf4;
/* rgb */ color: rgb(102, 140, 244);
/* oklch */ color: oklch(66.1% 0.160 266.9);

Tailwind

colors: {
  custom: {
    50: '#9cadf8',
    500: '#668cf4',
    950: '#000000',
  },
}

SCSS

$custom: #668cf4;
$custom-light: #9cadf8;
$custom-dark: #000000;

JSON

{
  "hex": "#668cf4",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 244
  },
  "hsl": {
    "h": 223.944,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.66113,
    "c": 0.16034,
    "h": 266.9
  },
  "luminance": 0.28113
}

Semantic roles & 50–950 ramp

primary

#668CF4

secondary

#F1E5C5

accent

#A702E3

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668CF4

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

Preview Lab → · Contrast checker → · Palette generator →