1
The 16 prompts below may be separated into 4 groups.
Additionally, there is a word absent from the wall which can be placed in all four of those groups.
#F0F8FF
(240, 100%, 50%)
(255, 215, 0)
Aqua
(255, 255, 240)
Lime
#000000
(0, 100%, 25%)
(39, 85%, 95%)
(230, 230, 250)
Orchid
#F...