Palettes / Colors / #403DF0

#403DF0 — Vivid Blue

#403DF0 is a blue color we call Vivid Blue, closest to the named color RoyalBlue (#4169E1). It belongs to the blue family.

#403DF0 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 #EDF03D; it also sits naturally between #3D93F0 and #993DF0. 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 25% · Green 24% · Blue 94%

Cyan 73% · Magenta 75% · Yellow 0% · Key 6%

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

Previews

CSS code for #403DF0

.text { color: #403DF0; }
.background { background-color: #403DF0; }
.border { border: 3px solid #403DF0; }
.text-rgb { color: rgb(64, 61, 240); }
.text-hsl { color: hsl(241, 86%, 59%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #403DF0; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(64, 61, 240, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #403DF0; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(64, 61, 240, 0.8); }

HTML: <p style="color:#403DF0">Text here</p> · <div style="background-color:#403DF0">Div content here</div>

Shades of #403DF0

Tints of #403DF0

Tones of #403DF0

Color harmonies

Complementary — #EDF03D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #403DF0: #FFFFFF.

How #403DF0 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 #403DF0 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

← #403DEF  ·  #403DF1 →

Frequently asked questions

What color is #403DF0?

#403DF0 is Vivid Blue, a blue color (RGB 64, 61, 240). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #403DF0?

#403DF0 is RGB 64, 61, 240 — HSL 241°, 86%, 59% — CMYK 73%, 75%, 0%, 6%.

What colors go with #403DF0?

Its complement is #EDF03D; analogous partners are #3D93F0 and #993DF0. It also appears in 6+ palettes in our collection.

Can I use #403DF0 for text?

White text on #403DF0 has a contrast ratio of 6.68:1 (passes WCAG AA); black text gives 3.14:1.