The swatches below are links to larger photographs of actual camouflage clothing and material. Note that these are not all to the same scale; use photographs of people actually wearing clothing in these patterns to establish their relative sizes.
Keep in mind that you should not match model paints directly to the colours you see on-screen, because colours are often different in a photograph than on the real thing. Another factor is that the settings of your computer monitor's brightness and contrast also affect the colours you see on-screen. However, camouflage uniforms often vary in colour based on a large number of factors, so essentially, any paint that comes close to the colours in the photographs is probably right for painting a model figure.