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Prussian Blue

#21385E

A deep, moderate prussian blue — sophisticated balance of hue and saturation that conveys composure and subtle refinement, well-suited to modern, minimalist design.

Psychology

Blue is the world's most-preferred color across age, gender, and culture. It lowers heart rate, conveys stability and trust, and reads as professional almost regardless of context.

Meaning

Trust, authority, and depth — which is why it anchors finance, healthcare, government, and big-tech logos. Lighter blues feel airy and aspirational; navy and midnight feel established.

Applications

Foundational for SaaS, fintech, and enterprise interfaces. Mix with warm accents to avoid the corporate-blue trap of looking like every competitor.

Conversion

HEX
21385E
RGB
33, 56, 94
HSL
217, 48%, 25%
HSB
217, 65%, 37%
CMYK
65, 40, 0, 63
LAB
23, 1, -26
LCH
23, 26, 272
OKLCH
0.34, 0.07, 260
XYZ
4, 4, 11
LUV
23, -9, -30
HWB
217, 13%, 63%
Pantone
534 C

Harmonies

Analogous
Complementary
Split Complementary
Triadic
Tetradic
Square

Shades & tints

Similar named colors

Browse every named blue on shades of blue, or all families on colors.