#668DF3#668DF3

#668DF3 is a light, vivid blue. Relative luminance 0.283; OKLCH L 66.3% C 0.158 H 266.4°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#668DF3
RGB	rgb(102, 141, 243)
HSL	hsl(223, 85%, 68%)
HSV	hsv(223, 58%, 95%)
CMYK	cmyk(58%, 42%, 0%, 4.7%)
CIE-LAB	lab(60.20, 16.39, -55.35)
CIE-LCH	lch(60.20, 57.72, 286.49°)
OKLab	oklab(66.26% -0.0099 -0.1575)
OKLCH	oklch(66.26% 0.158 266.4)
XYZ	xyz(31.1765, 28.3431, 88.6045)
Luminance	0.2835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668DF3 #F3CC66

analogous

#66D4F3 #668DF3 #8566F3

triadic

#668DF3 #F3668D #8DF366

tetradic

#668DF3 #F366D4 #F3CC66 #66F385

square

#668DF3 #F366D4 #F3CC66 #66F385

split-complementary

#668DF3 #F38566 #D4F366

monochromatic

#1045CE #2D63EF #668DF3 #9FB7F7 #D7E2FC

Accessibility & contrast

On white

3.15

#668DF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#668DF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668DF3

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668DF3	#FFFFFF	#000000	##000000
##668DF3	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6098F7

Deuteranopia (green-blind)

#4D8BF1

Tritanopia (blue-blind)

#00A4B4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #668df3;
/* rgb */ color: rgb(102, 141, 243);
/* oklch */ color: oklch(66.3% 0.158 266.4);

Tailwind

colors: {
  custom: {
    50: '#9cadf7',
    500: '#668df3',
    950: '#000000',
  },
}

SCSS

$custom: #668df3;
$custom-light: #9cadf7;
$custom-dark: #000000;

JSON

{
  "hex": "#668df3",
  "rgb": {
    "r": 102,
    "g": 141,
    "b": 243
  },
  "hsl": {
    "h": 223.404,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.66256,
    "c": 0.15782,
    "h": 266.4
  },
  "luminance": 0.28346
}

Semantic roles & 50–950 ramp

primary

#668DF3

secondary

#F0E4C5

accent

#A404E2

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668DF3

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

Preview Lab → · Contrast checker → · Palette generator →