This is a look I wore last week. I'm not sure what you could call it, chevron/gradient/ombre accent nail?
The polishes I used were:
Thumb - China Glaze Something Sweet
Index - China Glaze Dance Baby
Middle - Cult Nails Devious Nature
Pinky - China Glaze Traffic Jam
Ring - freehand crooked lines of all the above polishes plus Sinful Colors Snow Me White