true to (one's) colors

Unfailingly loyal. Don't worry, the enemy will not be able to sway Richard—he is true to his colors.

Name	Pronounced	Usage
Judy	['dʒu:di]
Smart	[smɑ:t]
MargrÉT	-	Icelandic
Shashi	-	Indian, Hindi, Marathi, Bengali, Kannada, Telugu
Shawn	[ʃɔ:n]
Minh	-	Vietnamese