Background pattern 226 (colour 6) #2316
Pink CC 0A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
More Textures
Bamboo Background Pattern #1330
Green CC BY-SA 3.0This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Background pattern 313 #1858
Dark CC 0Background pattern originally a PNG drawn in Paint.net
Source Firkin
Floral design #1985
Dark CC 0Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Background pattern black #2028
Dark CC 0Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Fire diamond #2488
Diamond CC 0U.S.-based National Fire Protection Association standard fire diamond for flagging risks posed by hazardous materials. The red diamond has a number 0-4 depending on flammability. The blue diamond has a number 0-4 depending on health hazard. The yellow has a number 0-4 depending on reactivity. the white square has a special notice, e.g OX for oxidizer.
Source Firkin
Gray Textile Background #1168
Fabric CC BY-SA 3.0A gray background pattern with a texture of textile. Suits perfectly for web design.
Source V. Hartikainen
Dark Concrete Wall #1193
Concrete CC BY-SA 3.0A free repetitive background with a dark concrete wall like texture. This one may be used in dark web site designs.
Source V. Hartikainen
Prismatic Isometric Cube Extra Pattern No Background@2X #789
Light CC 0Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Wellington boots pattern #1900
Colorful CC 0CC0 and seamless wellington boot pattern.
Source SliverKnight
Ribbon pattern 2 (version 2, colour 2) #2038
Colorful CC 0The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Background pattern 215 (colour 2) #2370
Blue CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Medic Packaging Foil@2X #377
Light CC BY-SA 3.08 by 8 pixels, and just what the title says.
Source pixilated
Diamond pattern 2 (colour 3) #2266
Colorful CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Stripey ball pattern #1997
Yellow CC 0To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Fabric pattern 3 (colour 3) #2385
Fabric CC 0Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Grilled Noise@2X #582
Fabric CC BY-SA 3.0You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Concrete Wall 3@2X #94
Light CC BY-SA 3.0All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Argyle #643
Dark CC BY-SA 3.0Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson