Dark Brick Wall #135
 Wall  CC BY-SA 3.0

Black brick wall pattern. Brick your site up!

Source Alex Parker

 More Textures
Mossy Wall #1269
 Wall  CC 0

Zero CC Mossy stone tileable texture, photographed and made by me. CC0

Source Sojan Janso

Concretia 1 #1408
 Gray  CC 0

Gamedev - Concrete Textures. CC0 License.

Source Davit Masia

Real Carbon Fiber #286
 Carbon  CC BY-SA 3.0

Carbon fiber is never out of fashion, so here is one more style for you.

Source Alfred Lee

Decorative divider 210 #2364
 Dark  CC 0

Derived from elements found in a floral ornament drawing on Pixabay.

Source Firkin

Triangular Psychosis 4 #236
 Noise  CC 0

A colorful triangular background, variation 4.

Source GDJ

Crisp Paper Ruffles #841
 Light  CC BY-SA 3.0

Sort of reminds me of those old house wallpapers.

Source Tish

Decorative divider 297 #1746
 Pink  CC 0

From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.

Source Firkin

Pinstriped [email protected] #666
 Dark  CC BY-SA 3.0

Just like your old suit, all striped and smooth.

Source Alex Berkowitz

Diamond [email protected] #686
 Diamond  CC BY-SA 3.0

Everyone loves a diamond, right? Make your site sparkle.

Source AJ Troxell

Prismatic Abstract Geometric Background 4 No [email protected]@2X #444
 Dark  CC 0

Prismatic Abstract Geometric Background 4

Source GDJ

Prismatic Groovy Concentric Background 5 No [email protected] #468
 Dark  CC 0

Prismatic Groovy Concentric Background 5 No Black

Source GDJ

Leaded glass background (colour 4) #2051
 Colorful  CC 0

Seamless pattern the tile.

Source Firkin

Background pattern 10 #216
 Noise  CC 0

A pattern drawn in Paint.net and vectorized in Vector Magic.

Source Firkin

Steel & Gray #1639
 Metal  CC 0

Metal-Plain or Painted. CC0 License.

Source Unknow

Prismatic Groovy Concentric Background 4 No Black #463
 Noise  CC 0

Prismatic Groovy Concentric Background 4 No Black

Source GDJ

Low Contrast [email protected] #864
 Dark  CC BY-SA 3.0

A smooth mid-tone gray, or low contrast if you will, linen pattern.

Source Jordan Pittman

Retro Squares Background [email protected] #795
 Dark  CC 0

Retro Squares Background 9

Source GDJ

Knitted [email protected] #604
 Grid  CC BY-SA 3.0

A bit like some carbon, or knitted netting if you will.

Source Anna Litvinuk

Paper Blank 3 #2117
 Paper  CC 0

CC0 textures, backgrounds.

Source SliverKnight

cloth texture #2454
 Fabric  CC 0

This is a light-brown cloth texture.

Source Yamachem

Zig-zag pattern 5 #2414
 Grid  CC 0

A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.

Source Firkin

Indian Red Web Background #1172
 Concrete  CC BY-SA 3.0

A free web background image with a seamless concrete-like texture and an Indian-red color.

Source V. Hartikainen

Stone Wall & Yellow #1556
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

meshed silhouette-omnibus #2484
 Brown  CC 0

The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.

Source Yamachem

Mix Stone #1298
 Stone  CC 0

ZeroCC tileable stone texture, edited from pixabay, CC0

Source Sojan Janso

Seamless Core Pattern 5 #169
 Dark  CC 0

Seamless Core Pattern 5

Source GDJ

Lock and key pattern #1884
 Yellow  CC 0

Seamless pattern formed from a key and lock.

Source Firkin