Palettes / Colors / #3900A3

#3900A3 — Vivid Purple

#3900A3 is a purple color we call Vivid Purple, closest to the named color Indigo (#4B0082). It belongs to the purple family.

#3900A3 is a cool purple color associated with luxury, creativity and mystery. 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 #6AA300; it also sits naturally between #0018A3 and #8B00A3. 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 22% · Green 0% · Blue 64%

Cyan 65% · Magenta 100% · Yellow 0% · Key 36%

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

Previews

CSS code for #3900A3

.text { color: #3900A3; }
.background { background-color: #3900A3; }
.border { border: 3px solid #3900A3; }
.text-rgb { color: rgb(57, 0, 163); }
.text-hsl { color: hsl(261, 100%, 32%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #3900A3; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(57, 0, 163, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #3900A3; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(57, 0, 163, 0.8); }

HTML: <p style="color:#3900A3">Text here</p> · <div style="background-color:#3900A3">Div content here</div>

Shades of #3900A3

Tints of #3900A3

Tones of #3900A3

Color harmonies

Complementary — #6AA300:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #3900A3: #FFFFFF.

How #3900A3 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 #3900A3 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

← #3900A2  ·  #3900A4 →

Frequently asked questions

What color is #3900A3?

#3900A3 is Vivid Purple, a purple color (RGB 57, 0, 163). Its closest standard named color is Indigo.

What is the RGB and HSL of #3900A3?

#3900A3 is RGB 57, 0, 163 — HSL 261°, 100%, 32% — CMYK 65%, 100%, 0%, 36%.

What colors go with #3900A3?

Its complement is #6AA300; analogous partners are #0018A3 and #8B00A3. It also appears in 6+ palettes in our collection.

Can I use #3900A3 for text?

White text on #3900A3 has a contrast ratio of 12.33:1 (passes WCAG AA); black text gives 1.70:1.