It is recommended always to use the four-color version of the logo. However, there are situations in which the four-color version cannot be used, because of small size or certain technical restrictions. In these cases, the monochrome version (black-and-white logo), or the negative version of either the monochrome or four-color logo may be used.
You can use the logo in four-color version only if the background is white, black or dark grey.
Negative version of the four-color logo
Negative version of the monochrome logo