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Cerulean

#21647A

A balanced, moderate cerulean — 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
21647A
RGB
33, 100, 122
HSL
195, 57%, 30%
HSB
195, 73%, 48%
CMYK
73, 18, 0, 52
LAB
39, -16, -19
LCH
39, 25, 230
OKLCH
0.47, 0.07, 224
XYZ
9, 11, 20
LUV
39, -24, -24
HWB
195, 13%, 52%
Pantone
316 C

Harmonies

Analogous
Complementary
Split Complementary
Triadic
Tetradic
Square

Shades & tints

Similar named colors

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