Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
The image is a design of blue glass.How about using it as background image?
Source Yamachem
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Prismatic Abstract Geometric Background 2
Source GDJ
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
"Beige Stone", Tileable Texture.
Source V. Hartikainen
ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
This is sort of fresh, but still feels a bit old school.
Source Martuchox
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry