Background pattern 306 (colour 5) #1879
Colorful CC 0Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
More Textures
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
Dark Brick Wall@2X #136
Wall CC BY-SA 3.0Black brick wall pattern. Brick your site up!
Source Alex Parker
Prismatic Groovy Concentric Background No Black@2X #452
Noise CC 0Prismatic Groovy Concentric Background No Black
Source GDJ
Subtle Dark Vertical #607
Dark CC BY-SA 3.0Classic vertical lines, in all its subtlety.
Source Cody L
Prismatic Groovy Concentric Background 4 No Black@2X #464
Noise CC 0Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Grid@2X #975
Gray CC BY-SA 3.0There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Wall #1360
Wall CC 0Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Fence panel #2577
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Noise Lines@2X #898
Paper CC BY-SA 3.0Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Crow and bird pattern #1965
Dark CC 0CC0 remixed from a drawing. Walter Crane, 1914, Firkin.
Source SliverKnight
Nami@2X #576
Dark CC BY-SA 3.0Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Brushed Alum #67
Light CC BY-SA 3.0A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Beige Paper #83
Paper CC BY-SA 3.0This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Diamonds Are Forever #183
Diamond CC BY-SA 3.0Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Background pattern 246 #2186
Red CC 0This was formed by distorting an image of a background on Pixabay.
Source Firkin
Floral design 87 #1886
Dark CC 0From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
Mooning #1140
Gray CC BY-SA 3.0The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Simple Horizontal Light@2X #983
Light CC BY-SA 3.0Sometimes you just need the simplest thing.
Source Fabricio
Tileable Wood #655
Wood CC BY-SA 3.0Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Background pattern 308 (colour 5) #1869
Blue CC 0Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin