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Onyx

#404B3E

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
404B3E
RGB
64, 75, 62
HSL
111, 9%, 27%
HSB
111, 17%, 29%
CMYK
15, 0, 17, 71
LAB
31, -7, 6
LCH
31, 9, 137
OKLCH
0.40, 0.03, 141
XYZ
5, 6, 6
LUV
31, -5, 8
HWB
111, 24%, 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.