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Onyx

#403A2B

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
403A2B
RGB
64, 58, 43
HSL
43, 20%, 21%
HSB
43, 33%, 25%
CMYK
0, 9, 33, 75
LAB
25, 1, 10
LCH
25, 10, 87
OKLCH
0.35, 0.03, 89
XYZ
4, 4, 3
LUV
25, 4, 10
HWB
43, 17%, 75%
Pantone
Black 7 C

Harmonies

Analogous
Complementary
Split Complementary
Triadic
Tetradic
Square

Shades & tints

Similar named colors

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