Om is the mystic name for the Hindu Trimurti, and represents the union of the three gods, viz. a for Brahma, u for Vishnu and m for Mahadev which is another name of Shiva.
Omkar derived from Om.
Omkar is related to Hindu religion, Yoga, Meditation, Nirvana, Ayurveda, Cosmic Energy.
3 lines in the logo
The 3 lines in the logo are representative of 3 lines on Lord Shiva's forehead.
The 3 lines are tapering at the end which represents infinity. The colors of the 3 lines are the 3 Primary colors (Red, Green & Blue). From these 3 colors all colors can be derived which represents we have capability to do anything.