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Onyx

#404640

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
404640
RGB
64, 70, 64
HSL
120, 4%, 26%
HSB
120, 9%, 27%
CMYK
9, 0, 9, 73
LAB
29, -4, 3
LCH
29, 5, 142
OKLCH
0.39, 0.01, 145
XYZ
5, 6, 6
LUV
29, -3, 4
HWB
120, 25%, 73%
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.