Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
A free seamless background pattern for use on websites.
Source V. Hartikainen
A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Prismatic Abstract Background Design
Source GDJ
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
A repeating background with a look of paper. I have added some changes to PatCreator. Now you can share your designs by submitting them to a new gallery section. Start by clicking Edit with PatCreator above.
Source V. Hartikainen
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
A repeating background of beige paper with vintage look. Repeats to infinity, as usual.
Source V. Hartikainen
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua