Cool Ignis Teal

Old English cōl, of low temperature — used as a color modifier as the complement to warm. Cool gray, cool blue: the optical impression of a slight blue-green shift, even within otherwise warm or neutral hues. Sits across the crisp, hushed, pale, and neutral buckets.

Latin ignis, fire. As a color modifier, ignis implies a Latin-fire-and-ignis-fatuus-and-sacred-fire quality, the visual register of Vestal-fire-and-ignis-fatuus hand-Latin-fire-and-ignis-fatuus-and-sacred-fire Vestal-fire-and-ignis-fatuus-and-Roman-Vesta-temple ignis-and-Latin-fire-and-Vestal-flame surfaces under Vestal-fire-and-ignis-fatuus-and-Roman-Vesta-temple Vestal-Virgin-and-Forum-Romanum sacred-flame-light. Sits at the modifier-and-Latin end of the grid, parallel to lux and ventus 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.