It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
This background texture resembles stone. It may be used as a background on web pages or on some of their html elements (header, borders, menu bar, etc.). Just modify it for your needs.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Prismatic Abstract Line Art Pattern Background
Source GDJ
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
This could be a hippy vintage wallpaper.
Source Tileable Patterns