Blue eyes, also called fair eyes or grey eyes in older literature, is a human eye colour. Unlike brown or black eyes, blueeyes are caused by low amounts of melanin in the stroma of the iris, as with green eyes.
Prose
He was eighty years old now, with a bloom on his cheeks like an autumn pippin and two limpid blue eyes that looked straight into yours and, if you had any reverence at all, made the tears well involuntarily at the sight of such gentle beauty.
The heroine of almost every fairy tale in the world is blue-eyed, as a sign that she is the true, good, and lovable maiden who is the object and reward of the quest and labour of the prince.
Conan's eyes blazed and he started as if stung; the guards tensed, grasping their bills, then relaxed as he dropped his head suddenly, as if in sullen resignation, and not even Demetrio could tell that he was watching them from under his heavy black brows, with eyes that were slits of blue bale-fire.
Robert E. Howard, "The God in the Bowl", Space Science Fiction (September 1952)
Her eyes were likewise neither wholly blue nor wholly grey, but of shifting colors and dancing lights and clouds of colors he could not define.
Further, the consideration as to the complexion is very decided. Blondes prefer dark persons, or brunettes; but the latter seldom prefer the former. The reason is, that fair hair and blue eyes are in themselves a variation from the type, almost an abnormity, analogous to white mice, or at least to grey horses. In no part of the world, not even in the vicinity of the pole, are they indigenous, except in Europe, and are clearly of Scandinavian origin.
The eyes are crystal blue, I immediately crave, a shade that makes my heart beat a little bit faster, almost as if I recognize it...It's the most perfect blue I've ever seen. Even from this distance, his eyes are simply remarkable.”
Her eyen gray and stepe Causeth myne hert to lepe;
John Skelton, "The Commendacions of maystres Jane Scrope", The Boke of Phyllyp Sparrowe (1545)
Her eyes, faire eyes, like to the purest lights That animate the Sunne, or cheere the day, In whom the shining Sun-beames brightly play Whiles fancie dooth on them divine delights.
Her eyes are Saphires set in snow, Refining heaven by everie winke; The Gods doo feare when as they glow, And I doo tremble when I thinke. Heigh ho, would she were mine.
Betwixt two ridges of ploughed land sat Wat, Whose body, pressed to th’earth, lay close and squat. His nose upon his two fore-feet close lies, Glaring obliquely with his great grey eyes.
Blue! ’Tis the life of heaven,—the domain Of Cynthia,—the wide palace of the sun,— The tent of Hesperus, and all his train,— The bosom of clouds, gold, gray, and dun. Blue! ’Tis the life of waters—ocean And all its vassal streams: pools numberless May rage, and foam, and fret, but never can Subside, if not to dark-blue nativeness. Blue! Gentle cousin of the forest-green, Married to green in all the sweetest flowers— Forget-me-not,—the blue-bell,—and, that queen Of secrecy, the violet: what strange powers Hast thou, as a mere shadow! But how great, When in an Eye thou art alive with fate!
John Keats, Answer to a Sonnet Ending Thus— "Dark eyes are dearer far Than those that made the hyacinthine bell." By J. H. Reynolds.
Like violets pale i’ the Spring o’ the year Came my Love’s sad eyes to my youth; Wan and dim with many a tear, But the sweeter for that in sooth: Wet and dim, Tender and true, Violet eyes Of the sweetest blue.Like pansies dark i’ the June o’ the year Grow my Love’s glad eyes to my prime; Rich with the purple splendour clear Of their thoughtful bliss sublime: Deep and dark, Solemn and true, Pansy eyes Of the noblest blue.
James Thomson ("Bysshe Vanolis"), "Sunday up the River: an Idyll of Cockaigne", no. 9