Design system · AI & LLM

OpenCode.

AI coding platform. Developer-centric dark theme.

Palette sample

First 5 hex codes lifted from the DESIGN.md color sections. The full palette and roles live in the source spec.

#201d1d
#fdfcfc
#9a9898
#007aff
#ff3b30

Visual theme

OpenCode's website embodies a terminal-native, monospace-first aesthetic that reflects its identity as an open source AI coding agent. The entire visual system is built on a stark dark-on-light contrast using a near-black background (`#201d1d`) with warm off-white text (`#fdfcfc`). This isn't a generic dark theme -- it's a warm, slightly reddish-brown dark that feels like a sophisticated terminal emulator rather than a cold IDE. The warm undertone in both the darks and lights (notice the subtle red channel in `#201d1d` -- rgb(32, 29, 29)) creates a cohesive, lived-in quality.

Related systems in AI & LLM