Comment by wnevets
Sure the US is ahead of the EU. The EU allows 11 [1] synthetic food dyes while the US only allows 9 [2]
[1] https://www.efsa.europa.eu/en/topics/topic/food-colours
[2] https://www.fda.gov/food/color-additives-information-consume...
I count 14 for the EU.
Quinoline Yellow (E 104), Sunset Yellow FCF/Orange Yellow S (E 110), Azorubine/Carmoisine (E 122), Amaranth (E 123), Ponceau 4R/Cochineal Red A (E 124), Erythrosine/Red No. 3 (E 127), Allura Red AC (E 129), Patent Blue V (E 131), Indigotine/Indigo carmine (E 132), Brilliant Blue FCF (E 133), Green S (E 142), Brilliant Black PN (E 151), Brown HT (E 155), Litholrubine BK (E 180)
Some of these names may be confusing since their names imply they're natural when in fact they are synthetic (e.g. Amaranth, Cochineal Red A, Indigo carmine).