Learn Spanish (Latin America): El chocolate es marrón.

In Spanish, when you are talking about a general category as the subject of a sentence—like chocolate in general—you must use a definite article (el, la, los, or las). English drops the "the", but Spanish requires it.

Why do we use es instead of está for "is" here?

We use es (from the verb ser) because being brown is a natural, defining characteristic of chocolate. You use the other "to be" verb, estar, for temporary states or locations, but a basic color is a permanent trait.

Is chocolate pronounced the same as in English?

No, even though it is spelled exactly the same, you have to pronounce it the Spanish way! In Spanish, you pronounce every single vowel clearly: cho-co-LA-te.

Does the color marrón change if we are describing a feminine noun?

No. Because marrón ends in a consonant, it stays exactly the same for both masculine and feminine nouns. However, if the noun is plural, you add -es to make it marrones.