Customizing the map

Hello !
I am new to OSM can someone help me to achieve this kind of picture in OSM (vivid colors, disabled geographical names). Needed for geographical classes.
Thanks in advance !

please have a deeper search on via keywords like “own style” or own tiles.

This will lead you to the OSM wiki about “Rendering”.

And have finally a deeper look at

Thank you Stephan ! Will it be enough ?

Not exactly what you want but have a lot of interesting colourful maps