
1) Beige and ecru 2) Car gears 3) Ebony and ivory 4) Fence-sitters 5) Gray, beige, et al 6) Muted tones 7) Nonaligned nations 8) Noncombatant group 9) People on the fence 10) Swiss nationals, historically 11) Unengaged positions 12) Versatile colors
Found on
https://www.crosswordclues.com/clue/neutrals

Not associated with any single hue. Blacks, whites, grays, and dull gray-browns. A neutral can be made by mixing complementary hues.
Found on
http://www.encyclo.co.uk/local/21532

Colors that do not adhere to a particular hue such as grays or blacks.
Found on
https://www.encyclo.co.uk/local/23092
No exact match found.