The New York Mets use blue and orange with white. The colors are often said to honor two old New York National League teams, the Dodgers (blue) and the Giants (orange). Blue caps carry an orange 'NY' logo. Home uniforms are white with blue pinstripes.
These are commonly used reference values; they can vary by source, material or screen. Brand names and colors belong to their owners; this page only lists color codes for information.