SANJIESAN CREATOR / Colour variation studies
Recolour an object without erasing its material cues
A convincing colour variation needs more than a new hue over the whole object. Adobe describes using a masked Hue/Saturation adjustment to target object colour. Apply that as a reversible starting point on an original drawing or photograph. The colour study should still explain the same form and material, unless changing those is an explicit part of the concept.
Identify the colour-bearing area
Choose a simple original object with a painted surface, a small neutral highlight and a darker recess. Decide which areas belong to the surface colour and which communicate light, openings or a different material. Keep the original beside the working version. Do not assume every pixel inside the object’s silhouette should receive exactly the same colour change. A metal fitting or a bright reflected area may need a separate decision.
Compare hue and affected area separately
Use the documented adjustment and mask controls on a duplicate or layered working file. First make the intended colour change visible, then inspect where it lands. Look closely at the boundary between the painted surface and a neutral fitting. Refine the mask if the change spills into the wrong area. Avoid compensating for a poor boundary by reducing the whole adjustment until the intended surface barely changes.
Read the unchanged form in the new colour
Compare the revised object at the intended presentation size. Check whether the highlight, recess and turning plane still explain its shape. Inspect against the composition’s background rather than only against a neutral editing view. If the new colour makes a boundary disappear, decide whether to revise the palette or the local treatment. Label the result as a colour study when it is only a visual proposal, with no claim that a physical finish has been produced.