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Onyx

#423A40

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
423A40
RGB
66, 58, 64
HSL
315, 6%, 24%
HSB
315, 12%, 26%
CMYK
0, 12, 3, 74
LAB
25, 5, -2
LCH
25, 5, 332
OKLCH
0.36, 0.01, 335
XYZ
5, 5, 5
LUV
25, 4, -3
HWB
315, 23%, 74%
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.