ROY G. BIV is its 'printed name.'

It's the second time I saw a rainbow in the east during the sunset on our rooftop. Luckily, I felt lazy to grab my camera and had to use my phone instead, so it qualifies for the contest.

Phone used: OPPO F5 16MP rear camera.
Enhancements used: Cropping, brightness reduction, clarity and color saturation boosts.

Photography tip:

A smartphone can be a great complement when you have a long lens like a 70-300 attached to your DSLR. Who knows when you might need a wide-angle shot? Your smartphone might be a quicker option when changing your lens is a hassle.