Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
A seamless paper background colored in pale yellow.
Source V. Hartikainen
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Like the name suggests, this background image consists of a pattern of dark bricks. It may be an option for you, if you are looking for something that looks like a brick wall for use as a background on web pages. It's not a masterpiece, but looks pretty nice when is tiled.
Source V. Hartikainen
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Prismatic Polka Dots Mark II No Background
Source GDJ
A seamlessly tileable pink background texture.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Hexagonalist Pattern No Background
Source GDJ
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Original minus the background
Source Firkin
Fix side and a seamless pattern formed from circles.
Source SliverKnight
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous