Categories: black coat

Why do most black cats have yellow eyes?

Why do most black cats have yellow eyes?

Photo in public domain

ANSWER: Black cats have a high content level of melanin (pigment). Melanin comes in two varieties: brown-black eumelanin and red-yellow pheomelanin.

Where there is little pigment in the iris, the eyes are blue due to the refraction of light and not pigmentation. However, if the iris contains a predominance of phenomelanin the eye is yellow. A predominance of eumelanin makes the eye darker (copper).

The high melanin content in black cats results in a high phenomelanin content in their eyes making them yellow.

I don’t know why there is more phenomelanin than eumelanin in the eyes of black cats.

I welcome any alternative thoughts on this topic.

Cat Eye Color

What color eyes do Burmese cats have?

Please comment here using either Facebook or WordPress (when available).
Michael Broad

Hi, I'm a 71-year-old retired solicitor (attorney in the US). Before qualifying I worked in many jobs including professional photography. I have a girlfriend, Michelle. I love nature, cats and all animals. I am concerned about their welfare.

Leave a Comment

Recent Posts

What kind of water bowl is best for cats?

The kind of water bowl that is best for cats is either glass, ceramic or…

3 hours ago

Substantial number of people give Covid-19 to their companion animals

There have been a few studies on this subject unsurprisingly. It is obviously highly pertinent…

7 hours ago

People prevented from feeding stray cats in the UK

This is an extraordinary development as far as I am concerned. Councils in the UK…

8 hours ago

I can feel my cat’s spine when I pet him

If you can feel your cat's spine when you pet him, he might be underweight.…

1 day ago


The title is in Japanese. It means: 7 shironeko (7 white cats)...which is not true…

1 day ago

New Zealand: man who trapped and drowned eight cats thought he was doing the right thing

ANALYSIS AND NEWS - WARNING: this content may upset some people so please don't read…

1 day ago