Definition of robin's–egg blue
1 : a variable color averaging a light greenish blue that is bluer and paler than average turquoise (see turquoise 2a) or average turquoise blue and bluer and deeper than average aqua blue — compare robin's egg
2 : a light bluish green that is greener and duller than average aqua green (see aqua green 1) and greener and paler than average turquoise green —called also bird's-egg green, eggshell blue
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