Palettes / Colors / #5BBBEF

#5BBBEF — Vivid Blue

#5BBBEF is a blue color we call Vivid Blue, closest to the named color CornflowerBlue (#6495ED). It belongs to the blue family.

Color name

Closest CSS keyword: cornflowerblue (#6495ED) — not an exact match. CSS cornflowerblue gives you #6495ED, a different color; use #5BBBEF 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.

#5BBBEF 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 #EF905D; it also sits naturally between #5DEFD9 and #5D73EF. 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 36% · Green 73% · Blue 94%

Cyan 62% · Magenta 22% · Yellow 0% · Key 6%

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

Previews

CSS code for #5BBBEF

.text { color: #5BBBEF; }
.background { background-color: #5BBBEF; }
.border { border: 3px solid #5BBBEF; }
.text-rgb { color: rgb(91, 187, 239); }
.text-hsl { color: hsl(201, 82%, 65%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #5BBBEF; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(91, 187, 239, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #5BBBEF; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(91, 187, 239, 0.8); }

HTML: <p style="color:#5BBBEF">Text here</p> · <div style="background-color:#5BBBEF">Div content here</div>

Shades of #5BBBEF

Tints of #5BBBEF

Tones of #5BBBEF

Color harmonies

Complementary — #EF905D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #5BBBEF: #000000.

Semi-transparent (opacity) text on #5BBBEF

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 #5BBBEF 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 #5BBBEF 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

← #5BBBEE  ·  #5BBBF0 →

Frequently asked questions

What color is #5BBBEF?

#5BBBEF is Vivid Blue, a blue color (RGB 91, 187, 239). Its closest standard named color is CornflowerBlue.

What is the RGB and HSL of #5BBBEF?

#5BBBEF is RGB 91, 187, 239 — HSL 201°, 82%, 65% — CMYK 62%, 22%, 0%, 6%.

What colors go with #5BBBEF?

Its complement is #EF905D; analogous partners are #5DEFD9 and #5D73EF. It also appears in 6+ palettes in our collection.

Can I use #5BBBEF for text?

Black text on #5BBBEF has a contrast ratio of 9.80:1 (passes WCAG AA); white text gives 2.14:1.