Dark Mosaic #121
Dark CC BY-SA 3.0Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
More Textures
Prismatic Curved Diamond Pattern 8 No Background #549
Dark CC 0Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
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
Black Thread@2X #600
Dark CC BY-SA 3.0Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
crissXcross #111
Dark CC BY-SA 3.0Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Prismatic Geometric Pattern Background 2 No Black@2X #784
Noise CC 0Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Greek key pattern 5 #2294
Dark CC 0Seamless pattern made from a tile that can be obtained in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Street Art Pattern #1196
Concrete CC BY-SA 3.0Looks as if it's spray painted on the wall. You can be sure that this pattern will seamlessly fill your backgrounds on web pages.
Source V. Hartikainen
45-Degree Fabric #1
Fabric CC BY-SA 3.0Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Background pattern 336 (colour 3) #1719
Blue 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
Black Metal Pipes #1089
Metal CC BY-SA 3.0An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
Kinda Jean@2X #1063
Gray CC BY-SA 3.0A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
Tex2res4@2X #718
Dark CC BY-SA 3.0Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
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
Flourish 2 #2299
Dark CC 0From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Gnarly bark #2582
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Background pattern 270 #2061
Dark CC 0A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Groovepaper@2X #578
Paper CC BY-SA 3.0With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
Wallpaper Tile 13 #240
Light CC 0An abstract Background pattern of purple twisty patterns.
Source TikiGiki
Subtle Carbon@2X #950
Dark CC BY-SA 3.0There are many carbon patterns, but this one is tiny.
Source Designova
Background pattern 302 (colour 2) #1887
Green CC 0Alternative colour scheme to the original.
Source Firkin
Background pattern 252 (colour 5) #2158
Light CC 0Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
PS Neutral #1134
Light CC BY-SA 3.0This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko