High-contrast geometric mark with white square and lime circle

Summary

A pure-geometry logo using a white rectangle and a lime-green semicircle that overlaps it, set on a dark gray-black ground to maximize contrast and visual impact.

Visual description

Dark charcoal background. A large white rectangle occupies the left side. A bright lime-green circle overlaps the rectangle's right edge, with roughly half of it extending beyond. The circle's left half sits atop the white rectangle, creating a clean two-shape, two-color composition. All forms are perfectly rendered with hard edges and no gradients or effects.

Key takeaway

The power of pure geometric contrast: white and lime green against dark charcoal create immediate visual hierarchy without needing gradients, shadows, or complexity. The overlapping technique (one shape partly occluding another) feels modern and dynamic despite the minimalism. This mark works as both a logo and app icon.

Reuse notes

Perfect for tech products, developer tools, or apps requiring a bold, memorable icon at multiple scales. The high contrast reads clearly even at tiny sizes (16x16 favicons). The flat, geometric approach keeps file sizes minimal and renders identically across all media. Avoid muted color palettes; this design lives on contrast.