Palettes / Colors / #511EF9

#511EF9 — Vivid Blue

#511EF9 is a blue color we call Vivid Blue, closest to the named color BlueViolet (#8A2BE2). It belongs to the blue family.

Color name

Closest CSS keyword: blueviolet (#8A2BE2) — not an exact match. CSS blueviolet gives you #8A2BE2, a different color; use #511EF9 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.

#511EF9 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 #C6F91F; it also sits naturally between #1F59F9 and #BF1FF9. 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 32% · Green 12% · Blue 98%

Cyan 67% · Magenta 88% · Yellow 0% · Key 2%

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

Previews

CSS code for #511EF9

.text { color: #511EF9; }
.background { background-color: #511EF9; }
.border { border: 3px solid #511EF9; }
.text-rgb { color: rgb(81, 30, 249); }
.text-hsl { color: hsl(254, 95%, 55%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #511EF9; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 30, 249, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #511EF9; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 30, 249, 0.8); }

HTML: <p style="color:#511EF9">Text here</p> · <div style="background-color:#511EF9">Div content here</div>

Shades of #511EF9

Tints of #511EF9

Tones of #511EF9

Color harmonies

Complementary — #C6F91F:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #511EF9: #FFFFFF.

Semi-transparent (opacity) text on #511EF9

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 #511EF9 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 #511EF9 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

← #511EF8  ·  #511EFA →

Frequently asked questions

What color is #511EF9?

#511EF9 is Vivid Blue, a blue color (RGB 81, 30, 249). Its closest standard named color is BlueViolet.

What is the RGB and HSL of #511EF9?

#511EF9 is RGB 81, 30, 249 — HSL 254°, 95%, 55% — CMYK 67%, 88%, 0%, 2%.

What colors go with #511EF9?

Its complement is #C6F91F; analogous partners are #1F59F9 and #BF1FF9. It also appears in 6+ palettes in our collection.

Can I use #511EF9 for text?

White text on #511EF9 has a contrast ratio of 7.23:1 (passes WCAG AA); black text gives 2.90:1.