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
66635E
RGB
102, 99, 94
HSL
37, 4%, 38%
HSB
37, 8%, 40%
CMYK
0, 3, 8, 60
LAB
42, 0, 3
LCH
42, 3, 82
OKLCH
0.50, 0.01, 81
XYZ
12, 13, 12
LUV
42, 2, 4
HWB
37, 37%, 60%
Pantone
Cool Gray 11 C
Harmonies
Shades & tints
Similar named colors
Browse every named gray on shades of gray, or all families on colors.