show your colors

Display true loyalties

To show your colors is to reveal your true nature, allegiances, or intentions—especially after a period of concealment or ambiguity.

The phrase comes from naval warfare, where ships would fly false flags to approach enemies before raising their true colors to attack.

Someone who finally showed their colors has dropped pretense: He showed his true colors when the money was on the table.

The expression often implies the revealed character is negative, though not always.

Related

expose · unmasked · come out · out in the open · intentions · stand · declare · bold · pride · banner · fly the flag · display · authentic · identity · commitment · patriotic · stripes · honest

Opposites
revelation of stance/allegiance

show your colorsdissemble

Conceal one's motives

keep mum · hold your tongue

commitment vs. neutrality

show your colorssit on the fence

Avoid committing either way

hedge your bets · equivocate · fence-sit · waffle · prevaricate

authenticity of presentation

show your colorswear a mask

play a role · keep up appearances · sail under false colors

Family

show, shows, showed, shown, showing, showy, showier, showiest, showily

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated G