Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
This is the remix of "Colorful Floral Pattern Background 3" uploaded by "GDJ". Thanks.
Source Yamachem
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
From a drawing in 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Clover with background for St. Patrick's Day. Add to a card with a doily, ribbon, a leprechaun or other embellishments.
Source BAJ
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Black brick wall pattern. Brick your site up!
Source Alex Parker