Sc2+
N/a
Sc3+
Colourless
Sc4+, 5+, 6+
Not a transition metal by definition
Ti2+
Colourless
Ti3+
Pale purple
Ti4+
Colourless
Ti5+
Colourless
Ti6+
N/a
Ti7+
N/a
V2+
Pale (lite) purple
V3+
(Pantone) Green
V4+
Blue
V5+
Yellow
V6+
N/A
V7+
N/a
Cr2+
Blue
Cr3+
(Pantone) Green
Cr4+
Colourless
Cr5+
Colourless
Cr6+
Orange
Cr7+
N/A
Mn2+
Magenta
Mn3+
Colourless
Mn4+
Pale maroon