Prismatic Triangular Seamless Pattern III With Background
Source GDJ
A background pattern with a look of rough fabric.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Might not be super subtle, but quite original in its form.
Source Alex Smith
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 2
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo