Leafy pattern 11 (colour) #1763
Green CC 0From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
More Textures
Background pattern 231 #2301
Dark CC 0A seamless pattern based on a tile that can be achieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
WaveCut@2X #76
Light CC BY-SA 3.0If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
White Wave #681
Stripes CC BY-SA 3.0Light and tiny, just the way you like it.
Source Rohit Arun Rao
Floral pattern 17 (colour) #1724
Orange CC 0Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Decorative divider 207 #2367
Dark CC 0Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Prismatic Groovy Concentric Background 2 #453
Noise CC 0Prismatic Groovy Concentric Background 2
Source GDJ
Red #1256
Red CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Decorative divider 234 #2093
Dark CC 0Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Background pattern 215 (colour 3) #2369
Pink CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Farmer@2X #660
Fabric CC BY-SA 3.0Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Diagonal Waves@2X #1007
Gray CC BY-SA 3.0It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
Wavy background #2018
Colorful CC 0CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Graphy@2X #351
Grid CC BY-SA 3.0Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Background Patterns - Citrone #248
Fabric CC BY-SA 3.0If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Abstract Stars Geometric Pattern Prismatic No Background #384
Noise CC 0Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Background pattern #1963
Dark CC 0To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern 223 (colour 5) #2349
Blue CC 0Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Prismatic Curved Diamond Pattern 8 No Background@2X #550
Dark CC 0Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Background pattern blue #1940
Blue CC 0Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Old Brown Leather, Seamless Texture #1117
Leather CC BY-SA 3.0This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
Wood Pattern@2X #371
Wood CC BY-SA 3.0One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev