The selector-circle (slide) in the saturation part should stay at the same x,y coordinates when shifting the hue

[caredev]

The selector-circle (slide) in the saturation part should stay at the same x,y coordinates when shifting the hue.
Look at how photoshop or the native webkit color picker works.

In your color picker it jumps the selected color to the top most right corner.
This can be solved by only altering the hue value of the selected color in ColorPicker's selectHue(color: any).
You could do Object.assign(this, { r, g, b, h }); and ignore the s and v values,