A Designer’s Guide To Eco-Friendly Interfaces

This article introduces Sustainable UX as a design philosophy that treats performance optimization as an environmental responsibility, not just a technical concern.

• •OLED screens turn off pixels at true black (#000000), making dark-first design save 39–47% battery power at full brightness according to a 2021 Purdue University study
• •Modern image formats like AVIF and WebP reduce image weight by up to 50% compared to JPEG with no perceptible quality loss
• •Complex JavaScript animations (GSAP, Lottie, parallax) force high GPU usage and drain battery; CSS transitions should be preferred as they are hardware-accelerated
• •A data budget sets a hard page-size cap (e.g., 1MB) to force intentional trade-offs and prevent feature creep from becoming carbon creep
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