Background pattern 215 (colour 2) #2370
Blue CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
More Textures
Background pattern 198 #2510
Yellow CC 0A version without colours blended together to give a different look.
Source Firkin
Zig Zag@2X #329
Dark CC BY-SA 3.0So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
Decorative divider 236 #2090
Dark CC 0From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Background pattern 226 (colour 3) #2318
Colorful CC 0A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Background pattern 214 #2377
Blue CC 0A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Grey Washed Wall #1128
Wall CC BY-SA 3.0This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
seigaiha subtle color #2278
Pink CC 0This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
Burried #831
Dark CC BY-SA 3.0Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
Black And White Floral Pattern Background Inverse #196
Dark CC 0Black And White Floral Pattern Background Inverse
Source GDJ
Tileable Off-white Background #1191
Concrete CC BY-SA 3.0A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
Seamless Green Tile Background #1326
Green CC BY-SA 3.0Seamless Green Tile Background
Source V. Hartikainen
Diagonales Decalées #1018
Light CC BY-SA 3.0Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Prismatic Floral Pattern 3 Variation 3 No Background #386
Noise CC 0Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Kaleidoscope Prismatic Abstract No Background #387
Noise CC 0Kaleidoscope Prismatic Abstract No Background
Source GDJ
Background pattern 315 #1845
Blue CC 0The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Leafy design 18 (colour) #1786
Green CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
"Black Metal Grid", Seamless Background Pattern #1080
Metal CC BY-SA 3.0A free seamless background pattern for use on websites.
Source V. Hartikainen
Decorative divider 205 #2381
Dark CC 0Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Background pattern 201 (colour 3) #2493
Grid CC 0A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin