Transparent Square Tiles@2X #299
Grid CC BY-SA 3.0The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
More Textures
Subtle White Feathers #1103
Light CC BY-SA 3.0This one is amazing, truly original. Go use it!
Source Viahorizon
Blizzard #663
Paper CC BY-SA 3.0This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Diagonal Striped Brick@2X #680
Stripes CC BY-SA 3.0Might not be super subtle, but quite original in its form.
Source Alex Smith
Psychedelic Geometric Background No Black@2X #812
Noise CC 0Psychedelic Geometric Background No Black
Source GDJ
Prismatic Abstract Geometric Background 4 No Black #441
Dark CC 0Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Ribbon pattern 2 (version 2) #2039
Colorful CC 0The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Wooden Background For Websites #873
Wood CC BY-SA 3.0This background has abstract texture with some similarities to wood.
Source V. Hartikainen
Subtle Dark Vertical #607
Dark CC BY-SA 3.0Classic vertical lines, in all its subtlety.
Source Cody L
Decorative divider 192 #2503
Dark CC 0From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.
Source Firkin
Prismatic Curved Diamond Pattern 5 No Background #543
Diamond CC 0Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Dark Tire #703
Dark CC BY-SA 3.0Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
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 green #2027
Green 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
snow crystal seamless pattern #2467
Blue CC 0The image depicts a seamless pattern of a snow crystal.I referred to a book called ”sekka-zusetsu” or "雪華図説" which means an illustrated explanation about snow crystals.This book was published in 1832 (天保３年) or Edo period.For more about "雪華図説",see here:dl.ndl.go.jp/info:ndljp/pid/2536975
Source Yamachem
Green Gobbler #85
Dark CC BY-SA 3.0Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Decorative divider 244 #2080
Dark CC 0From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Zig-zag pattern 5 #2414
Grid CC 0A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
HIXS Evolution #609
Dark CC BY-SA 3.0Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
Prismatic Curved Diamond Pattern 7 No Background@2X #548
Noise CC 0Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
ecorative divider 190 #2516
Dark CC 0From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
"Black Chains", Gloomy Background #1082
Metal CC BY-SA 3.0A repeating gloomy background image. This one consists of a pattern of black chains layered on top of a dark textured background.
Source V. Hartikainen
Background pattern 26 (black) #199
Dark CC 0Pattern formed from simple shapes. Black version.
Source Firkin
Background pattern 308 (colour 2) #1871
Green CC 0Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Fabric pattern #2402
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