Light Toast@2X #760
Paper CC BY-SA 3.0Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
More Textures
Skin Side Up@2X #848
Light CC BY-SA 3.0White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Soft Kill #318
Dark CC BY-SA 3.0Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Concrete Wall 2@2X #80
Wall CC BY-SA 3.0A light gray wall or floor (you decide) of concrete.
Source Atle Mo
P5@2X #1114
Light CC BY-SA 3.0Number five from the same submitter, makes my job easy.
Source Dima Shiper
Cardboard@2X #279
Paper CC BY-SA 3.0A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
Corrugation #765
Light CC BY-SA 3.0The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
SubtleNet #855
Light CC BY-SA 3.0You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Prismatic Groovy Concentric Background 5 No Black #467
Dark CC 0Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Egg Shell #861
Light CC BY-SA 3.0It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Black Linen 2@2X #104
Dark CC BY-SA 3.0A new take on the black linen pattern. Softer this time.
Source Atle Mo
Background pattern 15 #201
Dark CC 0A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
Candyhole #356
Light CC BY-SA 3.0It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Background pattern 8 (black) #209
Dark CC 0Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Vertical Cloth@2X #598
Dark CC BY-SA 3.0You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Geometric pattern #2003
Grid CC 0A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background 3 #457
Noise CC 0Prismatic Groovy Concentric Background 3
Source GDJ
Background pattern 249 #2179
Blue CC 0To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern 227 (colour 6) #2309
Red CC 0A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin