steely grey
1 very strong and determined:
steely determination
2 (of a person’s behavior or character) hard and strong as steel:
Only their steely determination to survive kept them going.
In contrast to the faltering will of commanders and lack of perseverance on the part of most of the soldiers, its men fought with unshakable dedication and steely determination.
The more common occurs as simple acute double pyramids with an indigo-blue to black color and steely luster.
The head is steely blue, darker below, with a dark line edging the gill covers.
There's a lot of pursed lips and steely looks.
He has always liked to see himself as a big fish in a small pond, with his steely, domineering manner and feeling of superior intellect.
His crimson robes display elaborate drapery, the folds emphasized with steely, yet buoyant lines.
The dome-shaped umbels of steely blue or white flowers have whorls of spiny basal bracts.
Their sound combines offbeat, atmospheric, stilted rhythms that climb and fall over steely guitar thrills and gradual bass lines.