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Prussian Blue

#00366C

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
00366C
RGB
0, 54, 108
HSL
210, 100%, 21%
HSB
210, 100%, 42%
CMYK
100, 50, 0, 58
LAB
22, 2, -37
LCH
22, 37, 273
OKLCH
0.34, 0.11, 254
XYZ
4, 4, 15
LUV
22, -12, -42
HWB
210, 0%, 58%
Pantone
541 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.