#668CCE#668CCE

#668CCE is a light, moderate blue. Relative luminance 0.260; OKLCH L 64.0% C 0.108 H 261.0°. Best body text is #000000 at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#668CCE
RGB	rgb(102, 140, 206)
HSL	hsl(218, 51%, 60%)
HSV	hsv(218, 50%, 81%)
CMYK	cmyk(50.5%, 32%, 0%, 19.2%)
CIE-LAB	lab(58.07, 5.28, -38.09)
CIE-LCH	lch(58.07, 38.46, 277.89°)
OKLab	oklab(64% -0.017 -0.1071)
OKLCH	oklch(64% 0.108 261)
XYZ	xyz(25.9944, 26.0354, 62.0361)
Luminance	0.2604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CCE #CEA866

analogous

#66C0CE #668CCE #7466CE

triadic

#668CCE #CE668C #8CCE66

tetradic

#668CCE #CE66C0 #CEA866 #66CE74

square

#668CCE #CE66C0 #CEA866 #66CE74

split-complementary

#668CCE #CE7466 #C0CE66

monochromatic

#2D508D #3C6ABB #668CCE #94AFDD #C3D2EC

Accessibility & contrast

On white

3.38

#668CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.21

#668CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CCE

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CCE	#FFFFFF	#000000	##000000
##668CCE	1.00	3.38	6.21	6.21
#FFFFFF	3.38	1.00	21.00	21.00
#000000	6.21	21.00	1.00	1.00
##000000	6.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7291D1

Deuteranopia (green-blind)

#6687CD

Tritanopia (blue-blind)

#369AA4

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #668cce;
/* rgb */ color: rgb(102, 140, 206);
/* oklch */ color: oklch(64.0% 0.108 261.0);

Tailwind

colors: {
  custom: {
    50: '#97addd',
    500: '#668cce',
    950: '#000000',
  },
}

SCSS

$custom: #668cce;
$custom-light: #97addd;
$custom-dark: #000000;

JSON

{
  "hex": "#668cce",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 206
  },
  "hsl": {
    "h": 218.077,
    "s": 51.485,
    "l": 60.392
  },
  "oklch": {
    "l": 0.64004,
    "c": 0.10848,
    "h": 261
  },
  "luminance": 0.26037
}

Semantic roles & 50–950 ramp

primary

#668CCE

secondary

#DCCDB4

accent

#8727BF

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668CCE

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

Preview Lab → · Contrast checker → · Palette generator →