#668FDF#668FDF

#668FDF is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.5% C 0.128 H 262.8°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#668FDF
RGB	rgb(102, 143, 223)
HSL	hsl(220, 65%, 64%)
HSV	hsv(220, 54%, 87%)
CMYK	cmyk(54.3%, 35.9%, 0%, 12.5%)
CIE-LAB	lab(59.70, 8.81, -45.04)
CIE-LCH	lch(59.70, 45.90, 281.07°)
OKLab	oklab(65.54% -0.0162 -0.1273)
OKLCH	oklch(65.54% 0.128 262.8)
XYZ	xyz(28.6167, 27.7952, 73.6547)
Luminance	0.2780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668FDF #DFB666

analogous

#66CBDF #668FDF #7966DF

triadic

#668FDF #DF668F #8FDF66

tetradic

#668FDF #DF66CB #DFB666 #66DF79

square

#668FDF #DF66CB #DFB666 #66DF79

split-complementary

#668FDF #DF7966 #CBDF66

monochromatic

#2350A8 #336AD4 #668FDF #99B4EA #CBD9F4

Accessibility & contrast

On white

3.20

#668FDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#668FDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FDF

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668FDF	#FFFFFF	#000000	##000000
##668FDF	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F96E2

Deuteranopia (green-blind)

#608BDD

Tritanopia (blue-blind)

#1FA1AC

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #668fdf;
/* rgb */ color: rgb(102, 143, 223);
/* oklch */ color: oklch(65.5% 0.128 262.8);

Tailwind

colors: {
  custom: {
    50: '#99afe9',
    500: '#668fdf',
    950: '#000000',
  },
}

SCSS

$custom: #668fdf;
$custom-light: #99afe9;
$custom-dark: #000000;

JSON

{
  "hex": "#668fdf",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 223
  },
  "hsl": {
    "h": 219.669,
    "s": 65.405,
    "l": 63.725
  },
  "oklch": {
    "l": 0.65539,
    "c": 0.12836,
    "h": 262.8
  },
  "luminance": 0.27797
}

Semantic roles & 50–950 ramp

primary

#668FDF

secondary

#E6D7BB

accent

#9018CD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #668FDF

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

Preview Lab → · Contrast checker → · Palette generator →