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Steel Blue

#3999CA

A balanced, moderate steel 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
3999CA
RGB
57, 153, 202
HSL
200, 58%, 51%
HSB
200, 72%, 79%
CMYK
72, 24, 0, 21
LAB
59, -17, -34
LCH
59, 38, 244
OKLCH
0.65, 0.11, 235
XYZ
24, 28, 60
LUV
59, -35, -50
HWB
200, 22%, 21%
Pantone
311 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.