Conference Room Color Theme


I am working with Ethernet relays for controlling lights, fans. windows blinds etc. I have purchased some Ethernet relays with SDK (which support MS .Net) and it work fine. Now I want to add multi color LEDs and add this functionality in software also, so that we can set color theme accordingly to our mood from software.

Is Arduino provide this functionality, if yes please help me and guide me how can I incorporate this functionality using Arduino.