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Steel Blue

#428FBF

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
428FBF
RGB
66, 143, 191
HSL
203, 49%, 50%
HSB
203, 65%, 75%
CMYK
65, 25, 0, 25
LAB
56, -13, -33
LCH
56, 35, 248
OKLCH
0.62, 0.10, 239
XYZ
21, 25, 53
LUV
56, -30, -48
HWB
203, 26%, 25%
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.