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Onyx

#423F47

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
423F47
RGB
66, 63, 71
HSL
263, 6%, 26%
HSB
263, 11%, 28%
CMYK
7, 11, 0, 72
LAB
27, 3, -4
LCH
27, 5, 301
OKLCH
0.37, 0.01, 303
XYZ
5, 5, 7
LUV
27, 1, -6
HWB
263, 25%, 72%
Pantone
Black 7 C

Harmonies

Analogous
Complementary
Split Complementary
Triadic
Tetradic
Square

Shades & tints

Similar named colors

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