Background pattern 252 #2162
Dark 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
More Textures
P5 #1113
Light CC BY-SA 3.0Number five from the same submitter, makes my job easy.
Source Dima Shiper
Page ornament 21 #2361
Dark CC 0From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Prismatic Hexagonalist Pattern No Background@2X #804
Light CC 0Prismatic Hexagonalist Pattern No Background
Source GDJ
Fabric pattern 3 (colour 4) #2384
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
Dark Mosaic@2X #122
Dark CC BY-SA 3.0Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Prismatic Abstract Background Design #403
Noise CC 0Prismatic Abstract Background Design
Source GDJ
Notebook@2X #1179
Gray CC BY-SA 3.0This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Prismatic Curved Diamond Pattern 6 No Background@2X #546
Dark CC 0Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Project Papper@2X #120
Paper CC BY-SA 3.0Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Background pattern 225 (colour 6) #2322
Brown CC 0Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Leafy frame 31 #1726
Green CC 0A frame using leaves from an image that was uploaded to Pixabay by mayapujiati
Source Firkin
Background pattern 222 #2345
Green CC 0Seamless pattern inspired by a drawing on Pixabay. To get the tile this is formed from, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
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
Abstract Ellipses Background Grayscale #378
Dark CC 0Abstract Ellipses Background Grayscale
Source GDJ
Prismatic Geometric Pattern Background 2 #409
Noise CC 0Prismatic Geometric Pattern Background 2
Source GDJ
Dark Brick Pattern #1032
Stone CC BY-SA 3.0A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
Background pattern 252 #2162
Dark 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
Dark Well #1259
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
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
Pyramid@2X #896
Light CC BY-SA 3.0Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Background pattern 234 (colour 3) #2257
Blue CC 0Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Decorative divider 211 #2362
Dark CC 0From a drawing in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Penrose pattern #1956
Colorful CC 0A seamless pattern made from the gold Penrose triangle by GDJ and the two remixes
Source Firkin
Rushes divider #2152
Dark CC 0From a drawing in 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
"Beige Stone", Tileable Texture #1025
Stone CC BY-SA 3.0"Beige Stone", Tileable Texture.
Source V. Hartikainen
“Transparent” Background Pattern #493
Light CC 0An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav