#668DE4#668DE4

#668DE4 is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.4% C 0.137 H 264.6°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#668DE4
RGB	rgb(102, 141, 228)
HSL	hsl(221, 70%, 65%)
HSV	hsv(221, 55%, 89%)
CMYK	cmyk(55.3%, 38.2%, 0%, 10.6%)
CIE-LAB	lab(59.41, 11.58, -48.29)
CIE-LCH	lch(59.41, 49.66, 283.48°)
OKLab	oklab(65.39% -0.0128 -0.1368)
OKLCH	oklch(65.39% 0.137 264.6)
XYZ	xyz(29.0032, 27.4737, 77.1583)
Luminance	0.2748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668DE4 #E4BD66

analogous

#66CCE4 #668DE4 #7E66E4

triadic

#668DE4 #E4668D #8DE466

tetradic

#668DE4 #E466CC #E4BD66 #66E47E

square

#668DE4 #E466CC #E4BD66 #66E47E

split-complementary

#668DE4 #E47E66 #CCE466

monochromatic

#1F4CB0 #3266DB #668DE4 #9AB4ED #CEDBF6

Accessibility & contrast

On white

3.23

#668DE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#668DE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668DE4

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668DE4	#FFFFFF	#000000	##000000
##668DE4	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6995E7

Deuteranopia (green-blind)

#5A8AE2

Tritanopia (blue-blind)

#15A0AD

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #668de4;
/* rgb */ color: rgb(102, 141, 228);
/* oklch */ color: oklch(65.4% 0.137 264.6);

Tailwind

colors: {
  custom: {
    50: '#9aaeed',
    500: '#668de4',
    950: '#000000',
  },
}

SCSS

$custom: #668de4;
$custom-light: #9aaeed;
$custom-dark: #000000;

JSON

{
  "hex": "#668de4",
  "rgb": {
    "r": 102,
    "g": 141,
    "b": 228
  },
  "hsl": {
    "h": 221.429,
    "s": 70,
    "l": 64.706
  },
  "oklch": {
    "l": 0.65393,
    "c": 0.13744,
    "h": 264.6
  },
  "luminance": 0.27476
}

Semantic roles & 50–950 ramp

primary

#668DE4

secondary

#E9DBBD

accent

#9714D2

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #668DE4

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

Preview Lab → · Contrast checker → · Palette generator →