"Argent, a fess gules" describes the red (gules) stripe (fess) on the silver (argent) field.
The white represents silver or "argent," the fesse is the band going across. It is gules or red and…
Fesse, broader horizontal stripe
The Or Ordinary is a fesse gules (red) color.
The Paly of six Ordinary is in colors argent (silver) and sable (black) with a fesse counterchanged.