The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Gold Triangular Seamless Pattern No Background
Source GDJ
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Zero CC asphalt, pavement, texture, photographed and made by me. CC0 WARNING I FOUND A SEAM ON THIS TEXTURE
Source Sojan Janso
A seamless texture of worn out "cardboard".
Source V. Hartikainen
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
A seamless light gray paper texture with horizontal double lines.
Source V. Hartikainen
A background pattern with green vertical stripes. A new striped background pattern. This time a green one.
Source V. Hartikainen
Geometric triangles seem to be quite hot these days.
Source Pixeden
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
Light and tiny, just the way you like it.
Source Rohit Arun Rao
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin
Sort of reminds me of those old house wallpapers.
Source Tish
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
This one is amazing, truly original. Go use it!
Source Viahorizon
This was formed by distorting an image of a background on Pixabay.
Source Firkin
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
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo