The colour of a test dyeing/batch is frequently recipe in any direction in colour space. The direction of change cannot be specified at this time, because the too far from the target colour to be accepted and some correction to the component concentrations in the recipe position of the colour of a test dyeing of the recipe relative to the target colour is unknown. is needed. Therefore, it would be useful for a colourist, already at the time of match prediction, to have some a 2. After a test dyeing (panel) has been prepared according to the calculated recipe, it is of interest to priori information about the possibility of correcting the colour of a particular recipe. In this article, the definitions determine the possibility of changing (correcting) the colour of the recipe only in the direction from the of directional and overall colour correctability are introduced and the way to calculate their numerical estimates position of the colour of the test sample to the position of the target colour. is developed. These values enable the comparison of the colour correctability of various different recipes for the same target colour in advance. In addition, the link be-From a theoretical point of view, the second topic, the tween the colour sensitivity and the colour correctability possibility of correcting a recipe in a particular direction, of a recipe is discussed. A numerical example is provided is treated as a part of the more complex general first topic for illustration.