Subtle Carbon #949
 Dark  CC BY-SA 3.0

There are many carbon patterns, but this one is tiny.

Source Designova

 More Textures
Light Grey Floral Motif #344
 Wall  CC BY-SA 3.0

Lovely light gray floral motif with some subtle shades.

Source GraphicsWall

Grunge For Surfaces 7 #1404
 Dark  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

Stone Wall & Purple #1541
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

White [email protected] #1106
 Wall  CC BY-SA 3.0

Looks like an old wall. I guess that’s it then?

Source Viahorizon

Debut [email protected] #1015
 Dark  CC BY-SA 3.0

Same classic 45-degree pattern, dark version.

Source Luke McDonald

Stitched Wool #843
 Light  CC BY-SA 3.0

I love these crisp, tiny, super subtle patterns.

Source Badhon Ebrahim

Wood [email protected] #371
 Wood  CC BY-SA 3.0

One of the few full-color patterns here, but this one was just too good to pass up.

Source Alexey Usoltsev

Wood Texgen 4 #1438
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Glossy Groove Stripe Pattern (Pale Orange) #967
 Stripes  CC BY-SA 3.0

A pale orange background pattern with glossy groove stripes.

Source V. Hartikainen

Floors & Block #1604
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Background pattern 243 (colour 2) #2196
 Colorful  CC 0

Random colour tile.

Source Firkin

Knitted [email protected] #1098
 Light  CC BY-SA 3.0

Can never have too many knitting patterns, especially as nice as this.

Source Victoria Spahn

Prismatic Abstract Geometric Background 4 #271
 Noise  CC 0

Prismatic Abstract Geometric Background 4

Source GDJ

Perforated White [email protected] #636
 Light  CC BY-SA 3.0

A bit of scratched up grayness. Always good.

Source Dmitry

Redox 02 #851
 Light  CC BY-SA 3.0

After 1 comes 2, same but different. You get the idea.

Source Hendrik Lammers

Background pattern 235 (colour 4) #2252
 Green  CC 0

To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

Hexabump #953
 Dark  CC BY-SA 3.0

Hexagonal dark 3D pattern. What more can you ask for?

Source Norbert Levajsics

Background pattern 275 #2033
 Blue  CC 0

Drawn in Paint.net and vectorised in Vector Magic

Source Firkin

Shapes pattern 2 (colour 3) #2239
 Blue  CC 0

A background made up of shapes.

Source Firkin

Prismatic 3D Isometric Tessellation Pattern 6 #148
 Dark  CC 0

Prismatic 3D Isometric Tessellation Pattern 6

Source GDJ

Prismatic Abstract Geometric Background 5 #401
 Noise  CC 0

Prismatic Abstract Geometric Background 5

Source GDJ

Prismatic Groovy Concentric Background 4 No [email protected] #464
 Noise  CC 0

Prismatic Groovy Concentric Background 4 No Black

Source GDJ

Wood 2 #1444
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Prismatic Polka Dots Mark II 3 No Background #534
 Noise  CC 0

Prismatic Polka Dots Mark II 3 No Background

Source GDJ

Grass #1278
 Green  CC 0

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

Source Sojan Janso

Stone Wall & Dark #1557
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Prismatic Groovy Concentric Background 3 No [email protected] #460
 Noise  CC 0

Prismatic Groovy Concentric Background 3 No Black

Source GDJ