Indigo
Definition 1 of 3
Pro Tip 1/2
Color Qualifier
Indigo refers to a specific shade of blue, darker than sky blue but lighter than navy. She wanted an indigo dress to match the twilight sky.
Pro Tip 2/2
Color Metaphor
Indigo is often used to suggest depth and richness in literature and poetry. His indigo moods were reflective of the stormy seas.