Triangles #127
Dark CC BY-SA 3.0Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
More Textures
Background pattern 26 (black) #199
Dark CC 0Pattern formed from simple shapes. Black version.
Source Firkin
Tessellation 10 #2547
Grid CC 0An alternative colour scheme to the original seamless pattern.
Source Firkin
Rough Concrete Surface #1195
Concrete CC BY-SA 3.0This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
White Plaster #368
Wall CC BY-SA 3.0Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Background pattern 236 #2249
Dark CC 0Seamless pattern the basic tile for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Light Paper Fibers@2X #836
Paper CC BY-SA 3.0More in the paper realm, this time with fibers.
Source Jorge Fuentes
Lorem Ipsum Background #1071
Paper CC BY-SA 3.0An aged paper background tile with smeared and pressed text.
Source V. Hartikainen
Prismatic Groovy Concentric Background 5 #465
Dark CC 0Prismatic Groovy Concentric Background 5
Source GDJ
Background pattern 246 (colour 5) #2182
Colorful CC 0This was formed by distorting an image of a background on Pixabay.
Source Firkin
Use Your Illusion #917
Dark CC BY-SA 3.0A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Wall #4 Light #779
Wall CC BY-SA 3.0I’m starting to think I have a concrete wall fetish.
Source Atle Mo
Background pattern 308 (colour 4) #1868
Green CC 0Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Seamless Textured Paper Background #1075
Paper CC BY-SA 3.0A seamless textured paper for backgrounds. Colored in pale orange hues.
Source V. Hartikainen
Old Moon@2X #1202
Gray CC BY-SA 3.0Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Prismatic Polka Dots 3 No Background #528
Noise CC 0Prismatic Polka Dots 3 No Background
Source GDJ
Decorative divider 220 #2230
Dark CC 0Prepared mostly as a raster in Paint.net and vectorised.
Source Firkin
Gray Sand@2X #18
Dark CC BY-SA 3.0A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Dark Fish Skin #1048
Dark CC BY-SA 3.0It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Tessellation 15 (colour) #2222
Blue CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Floral background 2 #380
Wall CC 0Background formed from the original with an emboss effect
Source GDJ
Decorative divider 222 #2208
Dark CC 0Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
Tree Bark #1182
Light CC BY-SA 3.0This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Background pattern 336 #1721
Pink CC 0Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin