Palettes / Colors / #331DFF

#331DFF — Vivid Blue

#331DFF is a blue color we call Vivid Blue, closest to the named color Blue (#0000FF). It belongs to the blue family.

#331DFF 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 #E9FF1F; it also sits naturally between #1F78FF and #A51FFF. 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 20% · Green 11% · Blue 100%

Cyan 80% · Magenta 89% · Yellow 0% · Key 0%

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

Previews

CSS code for #331DFF

.text { color: #331DFF; }
.background { background-color: #331DFF; }
.border { border: 3px solid #331DFF; }
.text-rgb { color: rgb(51, 29, 255); }
.text-hsl { color: hsl(246, 100%, 56%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #331DFF; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(51, 29, 255, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #331DFF; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(51, 29, 255, 0.8); }

HTML: <p style="color:#331DFF">Text here</p> · <div style="background-color:#331DFF">Div content here</div>

Shades of #331DFF

Tints of #331DFF

Tones of #331DFF

Color harmonies

Complementary — #E9FF1F:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #331DFF: #FFFFFF.

How #331DFF 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 #331DFF 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

← #331DFE  ·  #331E00 →

Frequently asked questions

What color is #331DFF?

#331DFF is Vivid Blue, a blue color (RGB 51, 29, 255). Its closest standard named color is Blue.

What is the RGB and HSL of #331DFF?

#331DFF is RGB 51, 29, 255 — HSL 246°, 100%, 56% — CMYK 80%, 89%, 0%, 0%.

What colors go with #331DFF?

Its complement is #E9FF1F; analogous partners are #1F78FF and #A51FFF. It also appears in 6+ palettes in our collection.

Can I use #331DFF for text?

White text on #331DFF has a contrast ratio of 7.61:1 (passes WCAG AA); black text gives 2.76:1.