Editing RGBA color model (section)

=== RGBA8888 ===

In [[OpenGL]] and [[Portable Network Graphics]] (PNG), the RGBA byte order is used, where the colors are stored in memory such that R is at the lowest address, G after it, B after that, and A last. On a little endian architecture this is equivalent to ABGR32.<ref>{{Cite web|title=Portable Network Graphics (PNG) Specification (Second Edition)|url=https://www.w3.org/TR/2003/REC-PNG-20031110/index.html|access-date=2021-11-25|website=www.w3.org}}</ref>

In many systems when there are more than 8 bits per channel (such as 16 bits or floating-point), the channels are stored in RGBA order, even if 8-bit channels are stored in some other order.