Palettes / Colors / #3FBDEF

#3FBDEF — Vivid Blue

#3FBDEF is a blue color we call Vivid Blue, closest to the named color MediumTurquoise (#48D1CC). It belongs to the blue family.

Color name

Closest CSS keyword: mediumturquoise (#48D1CC) — not an exact match. CSS mediumturquoise gives you #48D1CC, a different color; use #3FBDEF when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#3FBDEF 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 #EF703E; it also sits naturally between #3EEFC9 and #3E64EF. 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 25% · Green 74% · Blue 94%

Cyan 74% · Magenta 21% · Yellow 0% · Key 6%

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

Previews

CSS code for #3FBDEF

.text { color: #3FBDEF; }
.background { background-color: #3FBDEF; }
.border { border: 3px solid #3FBDEF; }
.text-rgb { color: rgb(63, 189, 239); }
.text-hsl { color: hsl(197, 85%, 59%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #3FBDEF; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(63, 189, 239, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #3FBDEF; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(63, 189, 239, 0.8); }

HTML: <p style="color:#3FBDEF">Text here</p> · <div style="background-color:#3FBDEF">Div content here</div>

Shades of #3FBDEF

Tints of #3FBDEF

Tones of #3FBDEF

Color harmonies

Complementary — #EF703E:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #3FBDEF: #000000.

Semi-transparent (opacity) text on #3FBDEF

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #3FBDEF 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 #3FBDEF 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

← #3FBDEE  ·  #3FBDF0 →

Frequently asked questions

What color is #3FBDEF?

#3FBDEF is Vivid Blue, a blue color (RGB 63, 189, 239). Its closest standard named color is MediumTurquoise.

What is the RGB and HSL of #3FBDEF?

#3FBDEF is RGB 63, 189, 239 — HSL 197°, 85%, 59% — CMYK 74%, 21%, 0%, 6%.

What colors go with #3FBDEF?

Its complement is #EF703E; analogous partners are #3EEFC9 and #3E64EF. It also appears in 6+ palettes in our collection.

Can I use #3FBDEF for text?

Black text on #3FBDEF has a contrast ratio of 9.74:1 (passes WCAG AA); white text gives 2.16:1.