Back to all colors

Cobalt

#1D3F75

A deep, moderate cobalt — 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
1D3F75
RGB
29, 63, 117
HSL
217, 60%, 29%
HSB
217, 75%, 46%
CMYK
75, 46, 0, 54
LAB
26, 3, -35
LCH
26, 35, 275
OKLCH
0.37, 0.10, 259
XYZ
5, 5, 18
LUV
26, -12, -44
HWB
217, 11%, 54%
Pantone
534 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.