Unashamedly looked at Companion.
Connections
Puzzle #1014
🟦🟦🟩🟦
🟦🟦🟦🟦
🟩🟩🟩🟩
🟨🟨🟨🟨
🟪🟪🟪🟪
I knew blue but two of the terms mean the same thing, IMO. Worked out green but a lucky guess for yellow, and PBD.