Palettes / Colors / #340FAE

#340FAE — Vivid Blue

#340FAE is a blue color we call Vivid Blue, closest to the named color Indigo (#4B0082). It belongs to the blue family.

Color name

Closest CSS keyword: indigo (#4B0082) — not an exact match. CSS indigo gives you #4B0082, a different color; use #340FAE 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.

#340FAE 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 #89AE0F; it also sits naturally between #0F39AE and #830FAE. 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 6% · Blue 68%

Cyan 70% · Magenta 91% · Yellow 0% · Key 32%

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

Previews

CSS code for #340FAE

.text { color: #340FAE; }
.background { background-color: #340FAE; }
.border { border: 3px solid #340FAE; }
.text-rgb { color: rgb(52, 15, 174); }
.text-hsl { color: hsl(254, 84%, 37%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #340FAE; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(52, 15, 174, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #340FAE; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(52, 15, 174, 0.8); }

HTML: <p style="color:#340FAE">Text here</p> · <div style="background-color:#340FAE">Div content here</div>

Shades of #340FAE

Tints of #340FAE

Tones of #340FAE

Color harmonies

Complementary — #89AE0F:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #340FAE: #FFFFFF.

Semi-transparent (opacity) text on #340FAE

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 #340FAE 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 #340FAE 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

← #340FAD  ·  #340FAF →

Frequently asked questions

What color is #340FAE?

#340FAE is Vivid Blue, a blue color (RGB 52, 15, 174). Its closest standard named color is Indigo.

What is the RGB and HSL of #340FAE?

#340FAE is RGB 52, 15, 174 — HSL 254°, 84%, 37% — CMYK 70%, 91%, 0%, 32%.

What colors go with #340FAE?

Its complement is #89AE0F; analogous partners are #0F39AE and #830FAE. It also appears in 6+ palettes in our collection.

Can I use #340FAE for text?

White text on #340FAE has a contrast ratio of 11.50:1 (passes WCAG AA); black text gives 1.83:1.