Is a Wild Card a match to a Wild Draw Color Card in Uno Flip
No. A Wild Card has no color. It can be played on any card regardless of color, number, or symbol, but it doesn't have a color itself. 

From the rules:


  you must match a card from your hand to the
  card on the top of the DISCARD pile, either by number, color or symbol [...] Alternatively, the player can put down a Wild card (See FUNCTIONS OF ACTION CARDS).


The "Draw Color" card specifies that the target draw cards until they draw one whose color is the named color.