The flag of Equatorial Guinea has an aspect ratio of 2:3. It consists of three horizontal stripes and a vertical stripe on the hoist side. The horizontal stripes are green (top), white (middle), and red (bottom). The vertical stripe is blue. The color codes for the flag are:

• Green: Pantone 347 C, HEX #009E60
• White: Pantone Safe, HEX #FFFFFF
• Red: Pantone 186 C, HEX #CE1126
• Blue: Pantone 286 C, HEX #0038A8

The width of the blue vertical stripe is equal to half the height of the flag. The remaining part of the flag is divided into three equal horizontal stripes. There is also a coat of arms in the center of the white stripe, which is not described here as per your request.