1. Of black tinged with blue
   - blue-black

See also: achromatic, neutral

• regrettably
• regroup
• regrow
• regrowth
• regular
• regular army
• regular convex polyhedron
• regular convex solid
• regular dodecahedron
• regular expression
• regular hexagon
• regular hexahedron
• regular icosahedron
• regular octahedron
• regular payment
• regular polygon
• regular polyhedron
• regular recurrence
• regular tetrahedron
• regularisation
• regularise
• regularity
• regularization
• regularize
• regularly