#668BDD#668BDD

#668BDD is a light, vivid blue. Relative luminance 0.265; OKLCH L 64.6% C 0.130 H 264.6°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#668BDD
RGB	rgb(102, 139, 221)
HSL	hsl(221, 64%, 63%)
HSV	hsv(221, 54%, 87%)
CMYK	cmyk(53.8%, 37.1%, 0%, 13.3%)
CIE-LAB	lab(58.52, 10.54, -45.80)
CIE-LCH	lch(58.52, 47.00, 282.96°)
OKLab	oklab(64.59% -0.0121 -0.1296)
OKLCH	oklch(64.59% 0.13 264.6)
XYZ	xyz(27.7589, 26.5084, 72.0464)
Luminance	0.2651 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BDD #DDB866

analogous

#66C6DD #668BDD #7C66DD

triadic

#668BDD #DD668B #8BDD66

tetradic

#668BDD #DD66C6 #DDB866 #66DD7C

square

#668BDD #DD66C6 #DDB866 #66DD7C

split-complementary

#668BDD #DD7C66 #C6DD66

monochromatic

#244CA4 #3465D2 #668BDD #98B1E8 #CAD7F3

Accessibility & contrast

On white

3.33

#668BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#668BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BDD

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BDD	#FFFFFF	#000000	##000000
##668BDD	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A93E0

Deuteranopia (green-blind)

#5C88DB

Tritanopia (blue-blind)

#249DA9

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #668bdd;
/* rgb */ color: rgb(102, 139, 221);
/* oklch */ color: oklch(64.6% 0.130 264.6);

Tailwind

colors: {
  custom: {
    50: '#99ace8',
    500: '#668bdd',
    950: '#000000',
  },
}

SCSS

$custom: #668bdd;
$custom-light: #99ace8;
$custom-dark: #000000;

JSON

{
  "hex": "#668bdd",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 221
  },
  "hsl": {
    "h": 221.345,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.64586,
    "c": 0.13016,
    "h": 264.6
  },
  "luminance": 0.2651
}

Semantic roles & 50–950 ramp

primary

#668BDD

secondary

#E5D7BA

accent

#941ACB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #668BDD

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

Preview Lab → · Contrast checker → · Palette generator →