#668BCE#668BCE

#668BCE is a light, moderate blue. Relative luminance 0.257; OKLCH L 63.8% C 0.110 H 261.7°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#668BCE
RGB	rgb(102, 139, 206)
HSL	hsl(219, 51%, 60%)
HSV	hsv(219, 50%, 81%)
CMYK	cmyk(50.5%, 32.5%, 0%, 19.2%)
CIE-LAB	lab(57.79, 5.87, -38.53)
CIE-LCH	lch(57.79, 38.97, 278.66°)
OKLab	oklab(63.79% -0.0158 -0.1084)
OKLCH	oklch(63.79% 0.11 261.7)
XYZ	xyz(25.8490, 25.7444, 61.9876)
Luminance	0.2575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BCE #CEA966

analogous

#66BFCE #668BCE #7566CE

triadic

#668BCE #CE668B #8BCE66

tetradic

#668BCE #CE66BF #CEA966 #66CE75

square

#668BCE #CE66BF #CEA966 #66CE75

split-complementary

#668BCE #CE7566 #BFCE66

monochromatic

#2D4F8D #3C69BB #668BCE #94AEDD #C3D1EC

Accessibility & contrast

On white

3.42

#668BCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#668BCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BCE

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BCE	#FFFFFF	#000000	##000000
##668BCE	1.00	3.42	6.15	6.15
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7190D1

Deuteranopia (green-blind)

#6586CD

Tritanopia (blue-blind)

#369AA3

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #668bce;
/* rgb */ color: rgb(102, 139, 206);
/* oklch */ color: oklch(63.8% 0.110 261.7);

Tailwind

colors: {
  custom: {
    50: '#97acdd',
    500: '#668bce',
    950: '#000000',
  },
}

SCSS

$custom: #668bce;
$custom-light: #97acdd;
$custom-dark: #000000;

JSON

{
  "hex": "#668bce",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 206
  },
  "hsl": {
    "h": 218.654,
    "s": 51.485,
    "l": 60.392
  },
  "oklch": {
    "l": 0.63789,
    "c": 0.10956,
    "h": 261.7
  },
  "luminance": 0.25746
}

Semantic roles & 50–950 ramp

primary

#668BCE

secondary

#DCCEB4

accent

#8927BF

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668BCE

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

Preview Lab → · Contrast checker → · Palette generator →