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Slate Blue

#556D87

A balanced, moderate slate 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

556D87

RGB

85, 109, 135

HSL

211, 23%, 43%

HSB

211, 37%, 53%

CMYK

37, 19, 0, 47

LAB

45, -4, -17

LCH

45, 18, 257

OKLCH

0.53, 0.05, 251

XYZ

14, 15, 25

LUV

45, -12, -24

HWB

211, 33%, 47%

Pantone

Cool Gray 11 C

Harmonies

Analogous

Complementary

Split Complementary

Triadic

Tetradic

Square

Shades & tints

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