
Ultramarine
Deep Blue Shade
Ultramarine is specifically a deep and vivid blue, suggesting richness or depth.

The evening gown was a striking shade of ultramarine.
Not Just Any Blue
Ultramarine indicates a specific blue, not light or sky blue, but a more saturated one.

He chose ultramarine, not aqua, for the book cover.
Luxurious Association
Historically, ultramarine was expensive to produce, often associated with luxury or nobility.

The ultramarine trimmings featured in the royal tapestry.
Compare with
AzureCeruleanIndigoNavy blueRoyal blueSapphire
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