#668DDD#668DDD

#668DDD is a light, vivid blue. Relative luminance 0.271; OKLCH L 65.0% C 0.128 H 263.5°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#668DDD
RGB	rgb(102, 141, 221)
HSL	hsl(220, 64%, 63%)
HSV	hsv(220, 54%, 87%)
CMYK	cmyk(53.8%, 36.2%, 0%, 13.3%)
CIE-LAB	lab(59.06, 9.36, -44.94)
CIE-LCH	lch(59.06, 45.91, 281.76°)
OKLab	oklab(65.01% -0.0144 -0.1271)
OKLCH	oklch(65.01% 0.128 263.5)
XYZ	xyz(28.0511, 27.0929, 72.1439)
Luminance	0.2710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668DDD #DDB666

analogous

#66C8DD #668DDD #7A66DD

triadic

#668DDD #DD668D #8DDD66

tetradic

#668DDD #DD66C8 #DDB666 #66DD7A

square

#668DDD #DD66C8 #DDB666 #66DD7A

split-complementary

#668DDD #DD7A66 #C8DD66

monochromatic

#244EA4 #3468D2 #668DDD #98B2E8 #CAD8F3

Accessibility & contrast

On white

3.27

#668DDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#668DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668DDD

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668DDD	#FFFFFF	#000000	##000000
##668DDD	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D94E0

Deuteranopia (green-blind)

#5F89DB

Tritanopia (blue-blind)

#239EAA

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #668ddd;
/* rgb */ color: rgb(102, 141, 221);
/* oklch */ color: oklch(65.0% 0.128 263.5);

Tailwind

colors: {
  custom: {
    50: '#99aee8',
    500: '#668ddd',
    950: '#000000',
  },
}

SCSS

$custom: #668ddd;
$custom-light: #99aee8;
$custom-dark: #000000;

JSON

{
  "hex": "#668ddd",
  "rgb": {
    "r": 102,
    "g": 141,
    "b": 221
  },
  "hsl": {
    "h": 220.336,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65008,
    "c": 0.12788,
    "h": 263.5
  },
  "luminance": 0.27095
}

Semantic roles & 50–950 ramp

primary

#668DDD

secondary

#E5D7BA

accent

#911ACB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #668DDD

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

Preview Lab → · Contrast checker → · Palette generator →