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
66636E
RGB
102, 99, 110
HSL
256, 5%, 41%
HSB
256, 10%, 43%
CMYK
7, 10, 0, 57
LAB
43, 3, -6
LCH
43, 7, 297
OKLCH
0.51, 0.02, 298
XYZ
13, 13, 17
LUV
43, 1, -8
HWB
256, 39%, 57%
Pantone
Cool Gray 11 C
Harmonies
Shades & tints
Similar named colors
Browse every named gray on shades of gray, or all families on colors.