#668CDD#668CDD

#668CDD is a light, vivid blue. Relative luminance 0.268; OKLCH L 64.8% C 0.129 H 264.1°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#668CDD
RGB	rgb(102, 140, 221)
HSL	hsl(221, 64%, 63%)
HSV	hsv(221, 54%, 87%)
CMYK	cmyk(53.8%, 36.7%, 0%, 13.3%)
CIE-LAB	lab(58.79, 9.95, -45.37)
CIE-LCH	lch(58.79, 46.45, 282.37°)
OKLab	oklab(64.8% -0.0133 -0.1283)
OKLCH	oklch(64.8% 0.129 264.1)
XYZ	xyz(27.9043, 26.7993, 72.0949)
Luminance	0.2680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CDD #DDB766

analogous

#66C7DD #668CDD #7B66DD

triadic

#668CDD #DD668C #8CDD66

tetradic

#668CDD #DD66C7 #DDB766 #66DD7B

square

#668CDD #DD66C7 #DDB766 #66DD7B

split-complementary

#668CDD #DD7B66 #C7DD66

monochromatic

#244DA4 #3466D2 #668CDD #98B2E8 #CAD7F3

Accessibility & contrast

On white

3.30

#668CDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#668CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CDD

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CDD	#FFFFFF	#000000	##000000
##668CDD	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B93E0

Deuteranopia (green-blind)

#5D88DB

Tritanopia (blue-blind)

#249EAA

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #668cdd;
/* rgb */ color: rgb(102, 140, 221);
/* oklch */ color: oklch(64.8% 0.129 264.1);

Tailwind

colors: {
  custom: {
    50: '#99ade8',
    500: '#668cdd',
    950: '#000000',
  },
}

SCSS

$custom: #668cdd;
$custom-light: #99ade8;
$custom-dark: #000000;

JSON

{
  "hex": "#668cdd",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 221
  },
  "hsl": {
    "h": 220.84,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.64797,
    "c": 0.12901,
    "h": 264.1
  },
  "luminance": 0.26801
}

Semantic roles & 50–950 ramp

primary

#668CDD

secondary

#E5D7BA

accent

#931ACB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #668CDD

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

Preview Lab → · Contrast checker → · Palette generator →