#668DDC#668DDC

#668DDC is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.0% C 0.127 H 263.4°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#668DDC
RGB	rgb(102, 141, 220)
HSL	hsl(220, 63%, 63%)
HSV	hsv(220, 54%, 86%)
CMYK	cmyk(53.6%, 35.9%, 0%, 13.7%)
CIE-LAB	lab(59.01, 9.05, -44.46)
CIE-LCH	lch(59.01, 45.37, 281.50°)
OKLab	oklab(64.95% -0.0146 -0.1257)
OKLCH	oklch(64.95% 0.127 263.4)
XYZ	xyz(27.9183, 27.0397, 71.4443)
Luminance	0.2704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668DDC #DCB566

analogous

#66C8DC #668DDC #7A66DC

triadic

#668DDC #DC668D #8DDC66

tetradic

#668DDC #DC66C8 #DCB566 #66DC7A

square

#668DDC #DC66C8 #DCB566 #66DC7A

split-complementary

#668DDC #DC7A66 #C8DC66

monochromatic

#254FA2 #3468D1 #668DDC #98B2E7 #CAD7F3

Accessibility & contrast

On white

3.28

#668DDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#668DDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668DDC

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668DDC	#FFFFFF	#000000	##000000
##668DDC	1.00	3.28	6.41	6.41
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D94DF

Deuteranopia (green-blind)

#5F89DA

Tritanopia (blue-blind)

#259EAA

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #668ddc;
/* rgb */ color: rgb(102, 141, 220);
/* oklch */ color: oklch(65.0% 0.127 263.4);

Tailwind

colors: {
  custom: {
    50: '#99aee7',
    500: '#668ddc',
    950: '#000000',
  },
}

SCSS

$custom: #668ddc;
$custom-light: #99aee7;
$custom-dark: #000000;

JSON

{
  "hex": "#668ddc",
  "rgb": {
    "r": 102,
    "g": 141,
    "b": 220
  },
  "hsl": {
    "h": 220.169,
    "s": 62.766,
    "l": 63.137
  },
  "oklch": {
    "l": 0.64953,
    "c": 0.12651,
    "h": 263.4
  },
  "luminance": 0.27042
}

Semantic roles & 50–950 ramp

primary

#668DDC

secondary

#E4D6BA

accent

#911BCB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #668DDC

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

Preview Lab → · Contrast checker → · Palette generator →