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Slate Blue

#556D7F

A balanced, muted 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

556D7F

RGB

85, 109, 127

HSL

206, 20%, 42%

HSB

206, 33%, 50%

CMYK

33, 14, 0, 50

LAB

45, -6, -13

LCH

45, 14, 247

OKLCH

0.52, 0.04, 241

XYZ

13, 14, 22

LUV

45, -12, -17

HWB

206, 33%, 50%

Pantone

Cool Gray 11 C

Harmonies

Analogous

Complementary

Split Complementary

Triadic

Tetradic

Square

Shades & tints

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Browse every named gray on shades of gray, or all families on colors.