Background pattern 215 #2371
Brown CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
More Textures
Decorative divider 229 #2151
Dark CC 0From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Decorative divider #1974
Dark CC 0Adapted from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Green Tiles, Background Pattern #1329
Green CC BY-SA 3.0A free background pattern with abstract green tiles.
Source V. Hartikainen
Prismatic Geometric Tessellation Pattern 4 No Background #557
Noise CC 0Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
Escheresque@2X #778
Light CC BY-SA 3.0Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Background pattern 214 (colour 6) #2372
Colorful CC 0A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Tessellation 15 (colour 2) #2221
Yellow CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using 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
Double Lined #51
Stripes CC BY-SA 3.0Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Noise Lines@2X #898
Paper CC BY-SA 3.0Lovely pattern with some good-looking non-random noise lines.
Source Zucx
"Beige Stone", Tileable Texture #1025
Stone CC BY-SA 3.0"Beige Stone", Tileable Texture.
Source V. Hartikainen
Background pattern 228 #2308
Colorful CC 0Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
White carbon@2X #12
Carbon CC BY-SA 3.0Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Ground Cracked 2 #1280
Wall CC 0Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
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
crissXcross@2X #112
Dark CC BY-SA 3.0Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Glossy Groove Stripe Pattern (Pale Orange) #967
Stripes CC BY-SA 3.0A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
Ocean decorative divider #1904
Dark CC 0Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin