A background pattern with blue on white vertical stripes.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
A seamless texture of black leather. I think it will look best when used in headers, footers or sidebars.
Source V. Hartikainen
Seamless Background For Websites. It has a texture similar to cork-board.
Source V. Hartikainen
This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
From a drawing in 'Az Osztrák-Magyar Monarchia irásban és képben', 1885.
Source Firkin
Old China with a modern twist, take two.
Source Adam Charlts
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
As the original image 's page size is too large for its image size, I remixed it.
Source Yamachem
The tile can be had by using shift+alt+i on the selected rectangle in Inkscape
Source Firkin
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
A seamlessly tileable pink background texture.
Source V. Hartikainen
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
The image is a design of blue glass.How about using it as background image?
Source Yamachem
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
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
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
This was formed by distorting an image of a background on Pixabay.
Source Firkin