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Onyx

#403B49

A deep, muted onyx — sophisticated balance of hue and saturation that conveys composure and subtle refinement, well-suited to modern, minimalist design.

Psychology

Gray is the connective tissue of interface design — neutral, balanced, and quiet. It supports without competing.

Meaning

Sophistication, neutrality, and restraint. Warm grays feel inviting; cool grays feel modern and technical.

Applications

Essential for backgrounds, borders, dividers, and secondary text in product UIs. Build a 9–11 step gray ramp early in any design system.

Conversion

HEX
403B49
RGB
64, 59, 73
HSL
261, 11%, 26%
HSB
261, 19%, 29%
CMYK
12, 19, 0, 71
LAB
26, 5, -8
LCH
26, 9, 301
OKLCH
0.36, 0.02, 301
XYZ
5, 5, 7
LUV
26, 2, -10
HWB
261, 23%, 71%
Pantone
Black 7 C

Harmonies

Analogous
Complementary
Split Complementary
Triadic
Tetradic
Square

Shades & tints

Similar named colors

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