The image is a design of blue glass.How about using it as background image?
Source Yamachem
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
One more sharp little tile for you. Subtle circles this time.
Source Blunia
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
The Grid. A digital frontier. I tried to picture clusters of information as they traveled through the computer.
Source Haris Šumić
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Prismatic Floral Background No Black
Source GDJ
Prismatic Basic Pattern 2 No Background
Source GDJ
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective