#668BF3#668BF3

#668BF3 is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.9% C 0.160 H 267.2°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#668BF3
RGB	rgb(102, 139, 243)
HSL	hsl(224, 85%, 68%)
HSV	hsv(224, 58%, 95%)
CMYK	cmyk(58%, 42.8%, 0%, 4.7%)
CIE-LAB	lab(59.67, 17.58, -56.19)
CIE-LCH	lch(59.67, 58.87, 287.37°)
OKLab	oklab(65.85% -0.0078 -0.16)
OKLCH	oklch(65.85% 0.16 267.2)
XYZ	xyz(30.8843, 27.7586, 88.5071)
Luminance	0.2776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BF3 #F3CE66

analogous

#66D2F3 #668BF3 #8766F3

triadic

#668BF3 #F3668B #8BF366

tetradic

#668BF3 #F366D2 #F3CE66 #66F387

square

#668BF3 #F366D2 #F3CE66 #66F387

split-complementary

#668BF3 #F38766 #D2F366

monochromatic

#1042CE #2D60EF #668BF3 #9FB6F7 #D7E1FC

Accessibility & contrast

On white

3.21

#668BF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#668BF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BF3

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BF3	#FFFFFF	#000000	##000000
##668BF3	1.00	3.21	6.55	6.55
#FFFFFF	3.21	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)

#5D96F7

Deuteranopia (green-blind)

#498AF1

Tritanopia (blue-blind)

#00A2B3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #668bf3;
/* rgb */ color: rgb(102, 139, 243);
/* oklch */ color: oklch(65.9% 0.160 267.2);

Tailwind

colors: {
  custom: {
    50: '#9cacf7',
    500: '#668bf3',
    950: '#000000',
  },
}

SCSS

$custom: #668bf3;
$custom-light: #9cacf7;
$custom-dark: #000000;

JSON

{
  "hex": "#668bf3",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 243
  },
  "hsl": {
    "h": 224.255,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.65851,
    "c": 0.16018,
    "h": 267.2
  },
  "luminance": 0.27761
}

Semantic roles & 50–950 ramp

primary

#668BF3

secondary

#F0E5C5

accent

#A804E2

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668BF3

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

Preview Lab → · Contrast checker → · Palette generator →