He reasoned that if there is a Clockmaker God running this clockwork universe, natural phenomena should reflect this.

Raised in an Anglican household, Newton studied the Bible with the same ferocity with which he studied science. He felt that his scientific discoveries were clear signs of the hand of the Clockmaker at work, and wrote of his hopes that his scientific investigations would instill in everyone a 'beliefe of a Deity', declaring that 'nothing can rejoyce me more than to find it useful for that purpose'. But Newton was fiercely Deist, with an unshakable belief that the 'mechanical universe' he envisioned as running like a well-made clock must necessarily imply a Clockmaker.

Isaac Newton, in his experiments separating and mixing light, found that the human eyes sees 6 logical clumps of colors, which we now refer to as the primary and secondary colors. Because the idea that there are 7 distinct colors got tossed out years ago.