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
66635D
RGB
102, 99, 93
HSL
40, 5%, 38%
HSB
40, 9%, 40%
CMYK
0, 3, 9, 60
LAB
42, 0, 4
LCH
42, 4, 85
OKLCH
0.50, 0.01, 85
XYZ
12, 13, 12
LUV
42, 2, 5
HWB
40, 36%, 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.