Colours

Do you like the colours? With this utterly useless app get them straight 16.7 million. Slide your finger across the screen to go through them all. If you get any fancy, you can long press to view its code. Colour is calculated based on the RGB or HSL model that are mapped to the classic crosshairs. Drive your finger up and down to the red channel, the green diagonally and horizontally for blue. That's the same old story for hue, saturation and brightness.

RGB, HSL, colour models, colour.