The flag of Anguilla has a blue field with the Union Jack in the upper hoist-side quadrant and the Anguillian coat of arms on the fly side. The aspect ratio is 1:2.

Colors:

• Blue (Pantone 280 C): HEX #00247D, RGB(0,36,125)
• Red (Pantone 186 C): HEX #C8102E, RGB(200,16,46)
• White: HEX #FFFFFF, RGB(255,255,255)
• Yellow (Pantone 116 C): HEX #FFCD00, RGB(255,205,0)

Geometric properties and measurements:

• The Union Jack occupies the upper quarter of the hoist side.
• The coat of arms is centered on the right half of the flag, with its width being 3/5 of the flag's height.

Other relevant information:

• The flag was adopted on May 30, 1990.