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Steel Blue

#66909C

A balanced, muted 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
66909C
RGB
102, 144, 156
HSL
193, 21%, 51%
HSB
193, 35%, 61%
CMYK
35, 8, 0, 39
LAB
57, -13, -11
LCH
57, 17, 222
OKLCH
0.63, 0.05, 217
XYZ
21, 25, 35
LUV
57, -21, -14
HWB
193, 40%, 39%
Pantone
Cool Gray 8 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.