1648 H. Hexham Groot Woorden-boeck Blauw tusschen groen en wit, ofte grauw blauw, a Blew betweene greene and white, or a Gray-Blewe.

1797 Knights; or, Sketches Heroic Age III. xliii. 188 The soft grey blue of its [sc. a robe's] hue, vying with the flax blossom from which it is named, peculiarly adorned her delicate features.

1846 Amer. Whig Rev. Dec. 604 The greens change to harsh blue-greens..and the white itself to skim-milk color, or gray blue.

1897 M. Kingsley Trav. W. Afr. 186 The more distant peaks were soft gray-blues and purple.

1928 Garden & Home Builder Aug. 540/2 (caption) The delicate gray-blue of Canada Phlox and the pale yellow of Tulip Miss Wilmott play in fine harmony.

1992 R. Brown Before & After ii. xvii. 190 He was handsome, his features clear and his eyes a penetrating gray-blue.

1741 J. J. Dillenius Hist. Muscorum vi. 188 The common gray-blue pitted Lichenoides.

1769 Descr. Eng. & Wales II. 75 The bottom stone appears of a grey blue colour.

1828 J. Stark Elem. Nat. Hist. I. ii. 212 Plumage gray-brown above, grayish-white beneath;..rump gray-blue.

1874 J. Fiske Let. 7 Jan. (1940) 297 He picked flaws with the grey-blue sky and the peculiar Turner-like light, and everything.

1909 F. A. Cook Through First Antarctic Night xii. 162 We passed great numbers of icebergs, but they were..all of a dull gray blue colour.

1949 A. E. Trueman Geol. & Scenery Eng. & Wales ii. 29 To the west of this the clays are known as the Oxford Clay, to the east as the Kimmeridge Clay, but both are grey-blue clays.

2001 J. Medlicott Gardens of Covington x. 76 His intense gray-blue eyes met hers and held them.

1834 Blackwood's Edinb. Mag. 35 821 A hissing of red-hot iron, that loses none of its heat, though it grey-blues its colour.