The flag of Aruba consists of a light blue field with two parallel yellow lines in the bottom half, and a four-pointed white-fimbriated red star in the upper hoist-side corner. The blue color represents the sea and sky surrounding the island, while the yellow stripes represent the sun, as well as Aruba's status as a member of the Kingdom of the Netherlands. The red star symbolizes Aruba's determination to overcome obstacles and challenges for its people. The aspect ratio of the flag is 2:3, and the geometric properties include a rectangle with a length of 3 units and a width of 2 units. The official color codes are:

• Blue: Pantone 299C / RGB: 0, 85, 164
• Yellow: Pantone 1235C / RGB: 255, 204, 0
• Red: Pantone 186C / RGB: 213, 43, 30
• White: N/A (represents the natural white of the fabric)

Note that the flag's dimensions vary depending on its intended use, ranging from small handheld flags to large banners.