You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Sort of reminds me of those old house wallpapers.
Source Tish
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Prismatic Abstract Background Design No Black
Source GDJ
A bit of scratched up grayness. Always good.
Source Dmitry
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
This background pattern has futuristic look. So, maybe it could be used on websites or blogs dedicated to video games?!
Source V. Hartikainen
A seamlessly tile-able grunge background image.
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
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
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Prismatic Geometric Pattern Background No Black
Source GDJ
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley