Palettes / Colors / #669CFF

#669CFF — Light Vivid Blue

#669CFF is a blue color we call Light Vivid Blue, closest to the named color CornflowerBlue (#6495ED). It belongs to the blue family.

#669CFF is a cool blue color associated with trust, calm and professionalism. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #FFC966; it also sits naturally between #66E8FF and #7D66FF. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 40% · Green 61% · Blue 100%

Cyan 60% · Magenta 39% · Yellow 0% · Key 0%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #669CFF

.text { color: #669CFF; }
.background { background-color: #669CFF; }
.border { border: 3px solid #669CFF; }
.text-rgb { color: rgb(102, 156, 255); }
.text-hsl { color: hsl(219, 100%, 70%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #669CFF; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(102, 156, 255, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #669CFF; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(102, 156, 255, 0.8); }

HTML: <p style="color:#669CFF">Text here</p> · <div style="background-color:#669CFF">Div content here</div>

Shades of #669CFF

Tints of #669CFF

Tones of #669CFF

Color harmonies

Complementary — #FFC966:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #669CFF: #000000.

How #669CFF looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with a similar color

These palettes use a close neighbour of #669CFF rather than the exact color:

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #669CFE  ·  #669D00 →

Frequently asked questions

What color is #669CFF?

#669CFF is Light Vivid Blue, a blue color (RGB 102, 156, 255). Its closest standard named color is CornflowerBlue.

What is the RGB and HSL of #669CFF?

#669CFF is RGB 102, 156, 255 — HSL 219°, 100%, 70% — CMYK 60%, 39%, 0%, 0%.

What colors go with #669CFF?

Its complement is #FFC966; analogous partners are #66E8FF and #7D66FF. It also appears in 6+ palettes in our collection.

Can I use #669CFF for text?

Black text on #669CFF has a contrast ratio of 7.76:1 (passes WCAG AA); white text gives 2.70:1.