Green or black liquid?
Looking it up, it seems like there are only five words for colors:
pimeja (black), walo (white), loje (red), jelo (yellow), and laso (blue and green)
In Toki Pona, the translation for "Would you like coffee or tea?" would be:
"sina wile e kafe anu telo nasa?"
Here's a breakdown:
"sina" = you
"wile" = want/need
"e" = direct object marker
"kafe" = coffee (borrowed word)
"anu" = or
"telo nasa" = literally "intoxicating liquid", often used to mean "tea" or "alcohol" (there's no specific word for "tea" in Toki Pona, but in some contexts, "telo nasa" can be used to mean tea)
It's worth noting that because Toki Pona has such a limited vocabulary, some words and concepts may be represented differently than in other languages.
Loje laso walo = mauve I guess.
But a language with 200 words necessarily becomes verbose I suppose