Colors / Indigo

shades of indigo

The contested band between blue and violet, about 251° to 270°.

The shade ramp

Same hue and saturation, brightness falling from near-white to near-black. This is what most people mean by “shades of indigo”.

#7636F5

#6A30DC

#5E2BC3

#5225AA

#462091

#3A1A78

#2E155F

#220F46

#160A2D

#0A0414

Brightness ramp at hue 260°, saturation 78%.

The tint ramp

Same hue and brightness, saturation climbing from almost gray to full strength. Saturation is the channel players misjudge most often, because a washed-out indigo and a vivid one carry the same name.

#DED8EB

#CEC0EB

#BEA8EB

#AE90EB

#9E78EB

#8E60EB

#7E48EB

#6E30EB

#5E18EB

#4E00EB

Saturation ramp at hue 260°, brightness 92%.

Across the range

Everything the eye files under indigo, sampled from 251° to 270°. Two colors at opposite ends of this strip still share one word.

#4A28E0

#5128E0

#5728E0

#5E28E0

#6428E0

#6A28E0

#7128E0

#7728E0

#7E28E0

#8428E0

Hue sweep from 251° to 270°.

Named indigos

Indigo#4B0082
Ultramarine#3F00FF
Periwinkle#CCCCFF
Slate blue#6A5ACD
Midnight blue#191970

Why indigo is hard to remember

Indigo is the hue most people cannot point to on demand. It was named as a separate band largely by convention rather than perception, and without a stable mental slot, recall defaults to whichever neighbour is more familiar — usually blue.

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