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Onyx

#403E46

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
403E46
RGB
64, 62, 70
HSL
255, 6%, 26%
HSB
255, 11%, 27%
CMYK
9, 11, 0, 73
LAB
27, 2, -5
LCH
27, 5, 296
OKLCH
0.37, 0.01, 297
XYZ
5, 5, 6
LUV
27, 1, -6
HWB
255, 24%, 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.