#668EE4#668EE4

#668EE4 is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.6% C 0.136 H 264.1°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#668EE4
RGB	rgb(102, 142, 228)
HSL	hsl(221, 70%, 65%)
HSV	hsv(221, 55%, 89%)
CMYK	cmyk(55.3%, 37.7%, 0%, 10.6%)
CIE-LAB	lab(59.68, 10.98, -47.86)
CIE-LCH	lch(59.68, 49.11, 282.92°)
OKLab	oklab(65.6% -0.0139 -0.1356)
OKLCH	oklch(65.6% 0.136 264.1)
XYZ	xyz(29.1513, 27.7700, 77.2077)
Luminance	0.2777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668EE4 #E4BC66

analogous

#66CDE4 #668EE4 #7D66E4

triadic

#668EE4 #E4668E #8EE466

tetradic

#668EE4 #E466CD #E4BC66 #66E47D

square

#668EE4 #E466CD #E4BC66 #66E47D

split-complementary

#668EE4 #E47D66 #CDE466

monochromatic

#1F4DB0 #3268DB #668EE4 #9AB4ED #CEDBF6

Accessibility & contrast

On white

3.20

#668EE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#668EE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668EE4

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668EE4	#FFFFFF	#000000	##000000
##668EE4	1.00	3.20	6.55	6.55
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.55	21.00	1.00	1.00
##000000	6.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B96E7

Deuteranopia (green-blind)

#5B8AE2

Tritanopia (blue-blind)

#15A1AE

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #668ee4;
/* rgb */ color: rgb(102, 142, 228);
/* oklch */ color: oklch(65.6% 0.136 264.1);

Tailwind

colors: {
  custom: {
    50: '#9aaeed',
    500: '#668ee4',
    950: '#000000',
  },
}

SCSS

$custom: #668ee4;
$custom-light: #9aaeed;
$custom-dark: #000000;

JSON

{
  "hex": "#668ee4",
  "rgb": {
    "r": 102,
    "g": 142,
    "b": 228
  },
  "hsl": {
    "h": 220.952,
    "s": 70,
    "l": 64.706
  },
  "oklch": {
    "l": 0.65602,
    "c": 0.13629,
    "h": 264.1
  },
  "luminance": 0.27772
}

Semantic roles & 50–950 ramp

primary

#668EE4

secondary

#E9DBBD

accent

#9614D2

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #668EE4

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

Preview Lab → · Contrast checker → · Palette generator →