Palettes / Colors / #515BEC

#515BEC — Vivid Blue

#515BEC is a blue color we call Vivid Blue, closest to the named color RoyalBlue (#4169E1). It belongs to the blue family.

Color name

Closest CSS keyword: royalblue (#4169E1) — not an exact match. CSS royalblue gives you #4169E1, a different color; use #515BEC 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.

#515BEC 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 #ECE151; it also sits naturally between #51A8EC and #9451EC. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 32% · Green 36% · Blue 93%

Cyan 66% · Magenta 61% · Yellow 0% · Key 7%

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

Previews

CSS code for #515BEC

.text { color: #515BEC; }
.background { background-color: #515BEC; }
.border { border: 3px solid #515BEC; }
.text-rgb { color: rgb(81, 91, 236); }
.text-hsl { color: hsl(236, 80%, 62%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #515BEC; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 91, 236, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #515BEC; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 91, 236, 0.8); }

HTML: <p style="color:#515BEC">Text here</p> · <div style="background-color:#515BEC">Div content here</div>

Shades of #515BEC

Tints of #515BEC

Tones of #515BEC

Color harmonies

Complementary — #ECE151:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #515BEC: #FFFFFF.

Semi-transparent (opacity) text on #515BEC

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 #515BEC 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 #515BEC 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

← #515BEB  ·  #515BED →

Frequently asked questions

What color is #515BEC?

#515BEC is Vivid Blue, a blue color (RGB 81, 91, 236). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #515BEC?

#515BEC is RGB 81, 91, 236 — HSL 236°, 80%, 62% — CMYK 66%, 61%, 0%, 7%.

What colors go with #515BEC?

Its complement is #ECE151; analogous partners are #51A8EC and #9451EC. It also appears in 6+ palettes in our collection.

Can I use #515BEC for text?

White text on #515BEC has a contrast ratio of 5.18:1 (passes WCAG AA); black text gives 4.06:1.