HDR Color Guide: High Dynamic Range for Web Design
How HDR affects color and brightness in display design. Covers HDR10, Dolby Vision, PQ curves, and what HDR means for web and app design.
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Tags: color, theory, design
HDR Color Guide: High Dynamic Range for Web and Display Design HDR is not just about wider color gamuts. The defining feature of HDR is greater brightness range — the ability to represent both very dark shadows and extremely bright highlights simultaneously in the same image or scene. Understanding what that means for web and display design requires separating the brightness story from the color story, because they're often conflated. What HDR Actually Means Standard Dynamic Range (SDR) displays have a peak brightness of roughly 100–300 nits (cd/m²) and a minimum near-black of about 0.1–1 nit. The ratio between peak and minimum — the contrast ratio — is roughly 1000:1 for a decent LCD. HDR displays raise both the peak brightness (to 400–10,000+ nits) and deepen the blacks (OLED achieves…
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