Green Fibers@2X #92
Dark CC BY-SA 3.0The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
More Textures
Prismatic Polka Dots Mark II 3 No Background #534
Noise CC 0Prismatic Polka Dots Mark II 3 No Background
Source GDJ
Background pattern 331 (version 2) #1745
Pink CC 0Derived from an image that was uploaded to Pixabay by TheDigitalArtist
Source Firkin
Black Wall #1267
Wall CC 0Zero CC asphalt, pavement, texture, photographed and made by me. CC0 WARNING I FOUND A SEAM ON THIS TEXTURE
Source Sojan Janso
White Linen #839
Light CC BY-SA 3.0Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Micro Carbon #7
Carbon CC BY-SA 3.0Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Decorative divider 287 #1821
Dark CC 0From a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Triangular@2X #1157
Gray CC BY-SA 3.0Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Skeletal Weave@2X #932
Light CC BY-SA 3.0Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Overlapped wood 2 #2568
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Background pattern 230 (colour 2) #2302
Green CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Fabric pattern (colour 6) #2397
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 Blue Gray Wallpaper Texture #901
Stripes CC BY-SA 3.0This seamless background image should look nice on websites. It has a dark blue gray texture with vertical stripes, it tiles seamlessly and, like all of the background images here, it's free. So, if you like it, take it!
Source V. Hartikainen
Satin Weave@2X #1045
Light CC BY-SA 3.0Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Escheresque Dark #1064
Dark CC BY-SA 3.0A comeback for you: the popular Escheresque, now in black.
Source Patten
Background pattern 256 #2139
Red CC 0Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
P5@2X #1114
Light CC BY-SA 3.0Number five from the same submitter, makes my job easy.
Source Dima Shiper
Background pattern 199 #2508
Green CC 0Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
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
edo pattern-samekomon #2271
Dark CC 0The image depicts an edo-era pattern called "same-komon" or "鮫小紋"which looks like a shark skin.The "same" in Japanese means shark in English.
Source Yamachem
Tex2res1 #721
Fabric CC BY-SA 3.0Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Prismatic Snowflakes Pattern 2 No Background@2X #782
Light CC 0Prismatic Snowflakes Pattern 2 No Background
Source GDJ
Thick Textured Brown Paper #1070
Paper CC BY-SA 3.0A repeating background of thick textured paper. Actually, it turned out to look like something between a paper and fabric.
Source V. Hartikainen
"Seamless Bark", Website Background. #879
Wood CC BY-SA 3.0This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
Diamond pattern 2 (colour 4) #2265
Red CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Fabric of Squares@2X #1096
Light CC BY-SA 3.0As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba