45-Degree Fabric@2X #2
Fabric CC BY-SA 3.0Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
More Textures
Textured Red Brown Plastic #878
Wood CC BY-SA 3.0Textured Red Brown Plastic, Free Background Pattern. Although there's already enough plastic in our lives, let's bring it to the web too.)
Source V. Hartikainen
Leafy pattern 10 #1775
Dark CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Tree and bird pattern #1983
Dark CC 0From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Office@2X #958
Dark CC BY-SA 3.0I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
"Animal Tracks", Background Pattern #1225
Yellow CC BY-SA 3.0A seamless pale yellow paper background with a pattern of animal tracks.
Source V. Hartikainen
Epithalamion tailpiece #2527
Dark CC 0From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
Prismatic Abstract Geometric Background 2 No Black@2X #446
Noise CC 0Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Decorative divider 206 #2380
Dark CC 0Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Floral pattern 13 #1756
Green CC 0From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Brilliant@2X #754
Light CC BY-SA 3.0This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Tree Bark #1182
Light CC BY-SA 3.0This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Wine glass background #2054
Pink CC 0Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
Background pattern 105 #563
Dark CC 0A seamless pattern formed from background pattern 102
Source Firkin
Maze White@2X #1047
Light CC BY-SA 3.0Just like the black maze, only in light gray. Duh.
Source Peax
Flower 193 #1794
Green CC 0From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin
Gold Wall & Dark #1250
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
HIXS Evolution #609
Dark CC BY-SA 3.0Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
Tessellation 15 (colour 3) #2220
Red 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 carbon@2X #12
Carbon CC BY-SA 3.0Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Prismatic Groovy Concentric Background 2@2X #454
Noise CC 0Prismatic Groovy Concentric Background 2
Source GDJ
Prismatic Polka Dots Mark II No Background@2X #531
Noise CC 0Prismatic Polka Dots Mark II No Background
Source GDJ
Rough Diagonal #691
Fabric CC BY-SA 3.0The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Tex2res4 #717
Dark CC BY-SA 3.0Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos