Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
A seamlessly tile-able grunge background image.
Source V. Hartikainen
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
If you need a green background for your blog/website, try this one. Remember that Green Striped Background is seamlessly tileable.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
A nice and simple white rotated tile pattern.
Source Another One
Spice up your next school project with this icon background.
Source Swetha
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
Original minus the background
Source Firkin
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless texture of a rough concrete surface.
Source V. Hartikainen