"Mi narancssárga?"

Translation: What is orange?

[mcfly17]

Sounds like "Mid", as in "what of yours"

[vvsey]

You will learn to understand Hungarian even if the speaker has a cold. :)

[Harold77079]

mi is what - where is - "is" - why wouldn't it be - mi narancssarga van?

[RyagonIV]

No. Copula sentences (where you identify the subject with the object) do not use van or vannak (or their derivatives):

• A ház zöld. - The house is green.
• Ő tanár. - She is a teacher.
• Mi a neved? - What is your name?

[ain15412]

Imho the correct translation here shall be "What is orange COLOR", to disambiguate from the fruit

[RyagonIV]

To distinguish the colour from the fruit, it's usually enough if you make the fruit countable:

• colour: What is orange?
• fruit: What is an orange? What are oranges?