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
51758D
RGB
81, 117, 141
HSL
204, 27%, 44%
HSB
204, 43%, 55%
CMYK
43, 17, 0, 45
LAB
47, -8, -17
LCH
47, 19, 245
OKLCH
0.54, 0.06, 238
XYZ
15, 16, 28
LUV
47, -17, -24
HWB
204, 32%, 45%
Pantone
Cool Gray 11 C
Harmonies
Shades & tints
Similar named colors
Browse every named gray on shades of gray, or all families on colors.