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
66564B
RGB
102, 86, 75
HSL
24, 15%, 35%
HSB
24, 26%, 40%
CMYK
0, 16, 26, 60
LAB
38, 5, 9
LCH
38, 10, 59
OKLCH
0.47, 0.03, 56
XYZ
10, 10, 8
LUV
38, 10, 10
HWB
24, 29%, 60%
Pantone
Cool Gray 11 C
Harmonies
Shades & tints
Similar named colors
Browse every named brown on shades of brown, or all families on colors.