The flag of Anguilla consists of a blue background with the British Union Jack in the upper left corner, and a stylized white dolphin and a light blue ribbon below it. The dolphin is surrounded by five white stars arranged in an ellipse shape. The flag has an aspect ratio of 1:2 and its geometric properties are that the Union Jack takes up the upper quarter of the flag, while the dolphin and stars occupy the remaining three-quarters. The color codes for the flag are:

• Blue: Pantone 286 C / RGB 0 35 149 / CMYK 100 90 2 5
• White: N/A
• Red (from Union Jack): Pantone 186 C / RGB 205 33 42 / CMYK 0 100 81 18
• Light Blue (ribbon): Pantone 297 C / RGB 101 191 225 / CMYK 50 0 7 0

The dimensions of the flag are not specified by law, but typical sizes are 3:5 or 2:3.