Shielded Hard Indigo

Old English scild, shield — past-participle of shield, sharing root with German Schild. As a color modifier, shielded implies a saturated-and-protected-and-defensive quality, the deep-rich color of medieval-knight armorial-shield-and-coat-of-arms heraldic display. Sits at the bold-and-fortified end of the grid, parallel to armored and bastioned.

Old English heard, firm / hard. As a color modifier, hard implies a stone-and-iron-and-bone quality, the visual register of hand-hard-and-firm stone-and-iron-and-bone hard-and-firm-and-resistant tactile-hardness-and-firmness surfaces under hard-and-firm tactile-hardness light. Sits at the modifier-and-texture end of the grid, parallel to forged and hewn in usage.

Indigofera tinctoria, the South Asian legume whose leaves yield the deep blue dye that has clothed humanity for at least four thousand years — Egyptian linen, Mayan textile, the slave-grown plantations of Carolina. The color refers to a freshly indigo-dyed cotton thread: a saturated, slightly violet-shifted deep blue with the slight lustre of a fiber surface oxidized in air. Deeper than cobalt, cooler than royal.