It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
A very dark asfalt pattern based off of a photo taken with my iPhone.
Source Atle Mo
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Background formed from the original with an emboss effect
Source GDJ
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
A seamlessly tile-able grunge background image.
Source V. Hartikainen
Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Seamless Green Tile Background
Source V. Hartikainen
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
Just a nice looking textured pattern with faded blue stripes. Well, that's it for today... one background a day, as usual.
Source V. Hartikainen
Black brick wall pattern. Brick your site up!
Source Alex Parker