A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Geometric triangles seem to be quite hot these days.
Source Pixeden
Prismatic Curved Diamond Pattern No Background
Source GDJ
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Original seamless pattern with an Inkscape filter.
Source Firkin
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Here's a new gray "fabric" pattern. Use it as backgrounds for websites or for other purposes.
Source V. Hartikainen
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
8 by 8 pixels, and just what the title says.
Source pixilated
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
The image depicts the Japanese Edo pattern called "seigaiha" or "青海波" meaning "blue -sea- wave".I hope it's suitable for the summer season.
Source Yamachem
A seamless light gray paper texture with horizontal double lines.
Source V. Hartikainen
Prismatic Abstract Geometric Background 5
Source GDJ
Might not be super subtle, but quite original in its form.
Source Alex Smith
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering