#668EF4#668EF4

#668EF4 is a light, vivid blue. Relative luminance 0.287; OKLCH L 66.5% C 0.158 H 266.1°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#668EF4
RGB	rgb(102, 142, 244)
HSL	hsl(223, 87%, 68%)
HSV	hsv(223, 58%, 96%)
CMYK	cmyk(58.2%, 41.8%, 0%, 4.3%)
CIE-LAB	lab(60.52, 16.12, -55.39)
CIE-LCH	lch(60.52, 57.69, 286.22°)
OKLab	oklab(66.52% -0.0107 -0.1576)
OKLCH	oklch(66.52% 0.158 266.1)
XYZ	xyz(31.4761, 28.6999, 89.4513)
Luminance	0.2870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668EF4 #F4CC66

analogous

#66D5F4 #668EF4 #8566F4

triadic

#668EF4 #F4668E #8EF466

tetradic

#668EF4 #F466D5 #F4CC66 #66F485

square

#668EF4 #F466D5 #F4CC66 #66F485

split-complementary

#668EF4 #F48566 #D5F466

monochromatic

#0F46D1 #2D64F0 #668EF4 #9FB8F8 #D8E2FC

Accessibility & contrast

On white

3.12

#668EF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#668EF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668EF4

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668EF4	#FFFFFF	#000000	##000000
##668EF4	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6199F8

Deuteranopia (green-blind)

#4E8CF2

Tritanopia (blue-blind)

#00A5B5

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #668ef4;
/* rgb */ color: rgb(102, 142, 244);
/* oklch */ color: oklch(66.5% 0.158 266.1);

Tailwind

colors: {
  custom: {
    50: '#9caef8',
    500: '#668ef4',
    950: '#000000',
  },
}

SCSS

$custom: #668ef4;
$custom-light: #9caef8;
$custom-dark: #000000;

JSON

{
  "hex": "#668ef4",
  "rgb": {
    "r": 102,
    "g": 142,
    "b": 244
  },
  "hsl": {
    "h": 223.099,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.66518,
    "c": 0.15799,
    "h": 266.1
  },
  "luminance": 0.28702
}

Semantic roles & 50–950 ramp

primary

#668EF4

secondary

#F1E4C5

accent

#A402E3

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668EF4

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

Preview Lab → · Contrast checker → · Palette generator →