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
66657B
RGB
102, 101, 123
HSL
243, 10%, 44%
HSB
243, 18%, 48%
CMYK
17, 18, 0, 52
LAB
43, 4, -12
LCH
43, 13, 289
OKLCH
0.52, 0.03, 287
XYZ
14, 14, 21
LUV
43, -1, -17
HWB
243, 40%, 52%
Pantone
Cool Gray 11 C
Harmonies
Shades & tints
Similar named colors
Browse every named black on shades of black, or all families on colors.