Abstract first
No letter, numeral, branch, or terminal symbol. The silhouette belongs to Sourcefour before it explains the product.
The mark
Sourcefour
Sourcefour
Equal weight
The two lozenges use identical geometry. Neither state is treated as the original or the answer.
Built to reduce
Two solid shapes and one clean gap remain legible in a 16px favicon and a monochrome system surface.
Graph palette
Colour borrowed from the product
Hinge uses the first two graph-lane colours rather than a separate marketing palette. The site, app, and icon therefore describe the same object.
#5B9DFFGraph blue
#7EC96FGraph green
#15171CChrome
#DFE3ECInk
Reduction
One geometry, every surface
12864322416Keep both forms equal and preserve the diagonal gap.
Do not stretch, rotate, outline, or reconnect the forms.
Do not introduce colours outside the product palette.