This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Derived from a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Otis Ray Redding was an American soul singer-songwriter, record producer, arranger, and talent scout. So you know.
Source Thomas Myrman
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Prismatic Polka Dots 3 No Background
Source GDJ
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
Derived from a drawing in 'Elfrica. An historical romance of the twelfth century', Charlotte Boger, 1885
Source Firkin
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin