Palettes / Colors / #511FF4

#511FF4 — Vivid Blue

#511FF4 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 #511FF4 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.

#511FF4 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 #C3F41F; it also sits naturally between #1F58F4 and #BC1FF4. 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 96%

Cyan 67% · Magenta 87% · Yellow 0% · Key 4%

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

Previews

CSS code for #511FF4

.text { color: #511FF4; }
.background { background-color: #511FF4; }
.border { border: 3px solid #511FF4; }
.text-rgb { color: rgb(81, 31, 244); }
.text-hsl { color: hsl(254, 91%, 54%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #511FF4; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 31, 244, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #511FF4; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 31, 244, 0.8); }

HTML: <p style="color:#511FF4">Text here</p> · <div style="background-color:#511FF4">Div content here</div>

Shades of #511FF4

Tints of #511FF4

Tones of #511FF4

Color harmonies

Complementary — #C3F41F:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #511FF4: #FFFFFF.

Semi-transparent (opacity) text on #511FF4

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 #511FF4 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 #511FF4 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

← #511FF3  ·  #511FF5 →

Frequently asked questions

What color is #511FF4?

#511FF4 is Vivid Blue, a blue color (RGB 81, 31, 244). Its closest standard named color is BlueViolet.

What is the RGB and HSL of #511FF4?

#511FF4 is RGB 81, 31, 244 — HSL 254°, 91%, 54% — CMYK 67%, 87%, 0%, 4%.

What colors go with #511FF4?

Its complement is #C3F41F; analogous partners are #1F58F4 and #BC1FF4. It also appears in 6+ palettes in our collection.

Can I use #511FF4 for text?

White text on #511FF4 has a contrast ratio of 7.36:1 (passes WCAG AA); black text gives 2.85:1.