Here's a tile-able wood background image for use in web design.
Source V. Hartikainen
Colourful background achieved with gradient fills.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
White circles connecting on a light gray background.
Source Mark Collins
The image depicts a seamless pattern which includes hexagonally-aligned gourds with BG in light-brown.
Source Yamachem
Abstract Ellipses Background Grayscale
Source GDJ
To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Remixed from an image that was uploaded to Pixabay by CatherineClennan
Source Firkin
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
A repeating background of beige (or is it more vanilla yellow) textured stripes. One more background with stripes.
Source V. Hartikainen