"Polished Stone", Gray Background Pattern #1053
Stone CC BY-SA 3.0A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
More Textures
Dark Well #1259
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Floral design #1984
Green CC 0Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Wood Pattern #370
Wood CC BY-SA 3.0One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Decorative divider 252 #2065
Dark CC 0Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
Moss #1290
Wall CC 0ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Hypnotic Pattern 2 No Background@2X #574
Noise CC 0Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Tessellation 15 (colour 4) #2219
Green CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
White Paperboard #374
Fabric CC BY-SA 3.0Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Carpet seamless texture 3 #2553
Wall CC 0From an image on opengameart.org shared by rubberduck.
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
Diamond pattern (colour 6) #2280
Yellow CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Background pattern 226 #2321
Brown 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
Background pattern 277 #2029
Dark CC 0A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Strange Bullseyes #865
Light CC BY-SA 3.0This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
Background pattern 201 (colour) #2497
Grid CC 0A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Decorative divider 184 #2589
Dark CC 0From a drawing in 'Royal Ramsgate', James Simson, 1897.
Source Firkin
Simple bump #172
Dark CC 0A simple bump filter made upon request at irc #inkscape at freenode. Made a screen capture of the making here: https://youtu.be/TGAWYKVLxQw
Source Lazur URH
Paper 1@2X #16
Paper CC BY-SA 3.0A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Paper 3 #31
Paper CC BY-SA 3.0Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Dimension #1173
Light CC BY-SA 3.0Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
Dark Brown Leather Texture, Seamless Tile #1092
Leather CC BY-SA 3.0The texture of this background image has some similarities with leather, and it's colored in a dark brown color. So, if you are looking for a dark brown background image for your website, this may be an option for you.
Source V. Hartikainen
Solid@2X #846
Gray CC BY-SA 3.0A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Green Striped Background #899
Stripes CC BY-SA 3.0If you need a green background for your blog/website, try this one. Remember that Green Striped Background is seamlessly tileable.
Source V. Hartikainen
Rocky Wall@2X #42
Light CC BY-SA 3.0High detail stone wall with minor cracks and specks.
Source Projecteightyfive
Blizzard #663
Paper CC BY-SA 3.0This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
French Stucco@2X #698
Paper CC BY-SA 3.0Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler