Large flag of the Netherlands. The image has a 300px hoist, according to the current Wikipedia preferred size for flags.

Image created originally as SVG image for the public domain Sodipodi flag collection. The colours of the flag are calculated from the official Dutch government standards document which describes textile colours called Normblad NEN 3055:

De kleur rood moet zijn helder vermiljoen met de trichromatische coördinaten X=17,2; Y=9,0 en Z=2,6.

De kleur blauw moet zijn kobaltblauw met de trichromatische coördinaten X=7,8; Y=6,8 en Z=26,7.

These are the colour values defined in the CIE's chromaticity diagram. To convert these values to RGB, a daylight value of D65 was used. The resulting colours are:

Red	#AE1C28
White	#FFFFFF
Blue	#21468B

For a complete list of Wikipedia flags, see List of flags.