What is ἀργός? Whiteness? Luminosity? Or, simply a range of bright shades? Having undertaken an on-going research project on the perception of colour-sense in antiquity that explores colour’s metaphorical function(s) and its social role, in this paper I shed light on bright shades in the Iliad, mainly ἀργός, and examine their contexts to investigate how the poet employs ἀργός in developing a richer narrative, including character portrayal. How are various appearances of ἀργός composed and interconnected? How do they metaphorically affect their contexts? What do they symbolise within the narrative? Through detailed analysis, I show that ἀργός, being appropriately selected to contribute to each context as a significant indicator, plays an important role in brightening the context, effectively and picturesquely.