The colour wheel you see is rendered in 24‑bit RGB, meaning each pixel can represent up to 16,777,216 unique colours. That’s the theoretical maximum for most modern displays. However, because the wheel is a continuous gradient rather than discrete patches, the actual number of visible unique colours depends on the image resolution and compression.
| Factor | Typical Value | Colour Count Impact |
|---|---|---|
| Bit depth | 24‑bit RGB | ~16.7 million possible colours |
| Image resolution | e.g., 1024×1024 pixels | ~1 million pixels, each potentially unique |
| Display capability | 8‑bit per channel | Limited to 16.7 million visible colours |
| Human perception | ~10 million distinguishable hues | Beyond that, differences blur together |
NB: Leonardo Da Vinci
