Open Pisces Teal

Old English open, unobstructed — used as a color modifier since the eighteenth century for hues that read as airy or uncrowded. Open blue, open green: moderate saturation combined with optical spaciousness, the slight visual breath of a hue that doesn't crowd the surface it covers. Sits at the crisp-bucket center alongside clear.

Latin pisces, fishes-of-the-zodiac. As a color modifier, pisces implies a two-fishes-and-water-sign-and-Jupiter-Neptune-ruled-mutable-water quality, the visual register of Hellenic-Pisces-and-Aphrodite-Eros-fishes hand-two-fishes-and-water-sign-and-Jupiter-Neptune-ruled-mutable-water Hellenic-Pisces-and-Aphrodite-Eros-fishes-and-Ichthys pisces-and-two-fishes-and-water-sign surfaces under Hellenic-Pisces-and-Aphrodite-Eros-fishes-and-Ichthys late-winter-and-February-and-March-into-April mutable-water-sign-light. Sits at the modifier-and-zodiac end of the grid, parallel to aquarius and aries in usage.

Anas crecca, the small dabbling duck whose male in breeding plumage sports a chestnut head crossed by a glossy green-blue stripe. The color refers to that stripe — the iridescent panel just behind the eye: a saturated, slightly muted blue-green with the optical depth of structural color rather than pigment. Cooler than cypress, warmer than cerulean, with the ornithological specificity of a color named for one feather of one bird.