A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
The image is a design of blue glass.How about using it as background image?
Source Yamachem
Prismatic Polka Dots Mark II No Background
Source GDJ
A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Prismatic Chevrons Pattern 5 With Background
Source GDJ
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
Prismatic Basic Pattern 2 No Background
Source GDJ
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
It’s big, it’s gradient—and it’s square.
Source Brankic1979
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin