#668FE4#668FE4

#668FE4 is a light, vivid blue. Relative luminance 0.281; OKLCH L 65.8% C 0.135 H 263.6°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#668FE4
RGB	rgb(102, 143, 228)
HSL	hsl(220, 70%, 65%)
HSV	hsv(220, 55%, 89%)
CMYK	cmyk(55.3%, 37.3%, 0%, 10.6%)
CIE-LAB	lab(59.95, 10.39, -47.43)
CIE-LCH	lch(59.95, 48.56, 282.36°)
OKLab	oklab(65.81% -0.015 -0.1343)
OKLCH	oklch(65.81% 0.135 263.6)
XYZ	xyz(29.3008, 28.0689, 77.2575)
Luminance	0.2807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668FE4 #E4BB66

analogous

#66CEE4 #668FE4 #7C66E4

triadic

#668FE4 #E4668F #8FE466

tetradic

#668FE4 #E466CE #E4BB66 #66E47C

square

#668FE4 #E466CE #E4BB66 #66E47C

split-complementary

#668FE4 #E47C66 #CEE466

monochromatic

#1F4EB0 #3269DB #668FE4 #9AB5ED #CEDBF6

Accessibility & contrast

On white

3.17

#668FE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#668FE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FE4

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668FE4	#FFFFFF	#000000	##000000
##668FE4	1.00	3.17	6.61	6.61
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C97E7

Deuteranopia (green-blind)

#5D8BE2

Tritanopia (blue-blind)

#14A2AF

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #668fe4;
/* rgb */ color: rgb(102, 143, 228);
/* oklch */ color: oklch(65.8% 0.135 263.6);

Tailwind

colors: {
  custom: {
    50: '#9aafed',
    500: '#668fe4',
    950: '#000000',
  },
}

SCSS

$custom: #668fe4;
$custom-light: #9aafed;
$custom-dark: #000000;

JSON

{
  "hex": "#668fe4",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 228
  },
  "hsl": {
    "h": 220.476,
    "s": 70,
    "l": 64.706
  },
  "oklch": {
    "l": 0.65811,
    "c": 0.13516,
    "h": 263.6
  },
  "luminance": 0.28071
}

Semantic roles & 50–950 ramp

primary

#668FE4

secondary

#E9DABD

accent

#9414D2

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #668FE4

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

Preview Lab → · Contrast checker → · Palette generator →