Aquamarine.
Some colours with two syllables are:PurpleYellowOrange
Some four syllable words beginning with U are:UnderstandingUnicycleUnluckily
tomato
superstition
A 4 syllable word is a word with 4 syllables:)
Acquainted is a three syllable word.
Badger (2)ungenerous (4)
Some four syllable words beginning with 'D' are:DictionaryDesolationDissertationDirectoryDandelionDelectableSome five syllable words beginning with 'D' are:DeterminationDiagonallyDifferentiateDecontaminate
There are no usual colours that I can think of that have 4 syllables. However, there are a few with 4 syllables when they are descriptive of a colour. Some of these are Indian red, Amaranth pink and alloy orange. See the related link for a list of colours.
RAM-BUNC-TIOUS-LY
Some examples of 4-letter, 2-syllable words include: easy, four, able, that, here, mind, jump, know.
4