This design-focused brand name is a combination of the words "pixel" and the acronym 'UI' (which stands for 'User Interface').
Pixui has only five letters and just two syllables. Two-syllable names are extremely rare and exceptionally valued. Two syllable names are used by established brands like Ikea, Honda and YouTube.
This domain was first registered in November 2016. Older domains have an advantage when ranking in search engines.
Pixui.com is a dot com domain. Dot com domains are the most valuable domain extension in the world, famously used by websites like google.com. When most people think of a website, they think of a dot com.