Temperatute/Tint Sliders
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Let’s look at the Planckian locus first:
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In the model of the black body radiator (something that emits, but does not reflect electromagnetic radiation, light), that radiator will glow red at low temperatures and bluish white at high temperatures. The emitted light has a colour that can be located in the CIE chromaticity diagram on the curve that we can see in the diagram above.
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If we move perpendicularly away from the curve (tint, which is relative to colour temperature), colours shift between red and yellow at low temperatures and between cyan and violet at high temperatures (follow the “bristles” in the diagram). Only at daylight temperatures will the tint slider deliver green to magenta shifts.
Hue Slider in LA
- The hue slider in LA is like the circle in the HSL tool, only cut and straightened.
- Changing the hue corresponds to a rotation in the HSL circle.
If we now shift several sliders (Temperature, Tint, Hue), we help ourselves with operations in different colour models, which makes colours wander all over the place in a seemingly nonsensical way. Nevertheless, the changes that you saw make sense. Visualise the diagram above plus the hue colour wheel while doing your changes.
Examples: At low temperatures, a full shift (180 degree rotation of the hue wheel) corresponds to a colour change from red to yellow and from violet to cyan at high temperatures.