Blue Potion
Cyan Potion
Red Potion
Green Potion
Pink Potion
Purple Potion
Lime Potion
Gold Potion
Red usually means Strength. Green means Agility. Cyan means Intelligence. Gold means Luck. We've seen this before, so the probability of this correlation is high.
Next: Willpower, Perception, Wisdom, Charisma.
Purple, Lime, Blue, and Pink, respectively. Well, I can only say "that's just my guess."
Perhaps: there's a check first, and only if it's passed, a buff is applied. Otherwise, something bad happens.
Perhaps: some unusual permanent effect, like partial physical/magical damage resistance. Or an enhancement of a certain element's magic (in which case, all the potions should be given to Lyia).
I would risk it and take one. If it's not good, we stop (but we take the potions just in case).