luminance

1 brightness created by light reflected from a surface the emerald had a pure, icy green luminance Synonyms burnish, gloss, shine, luster (or lustre), polish, sheenRelated Words glare, gleam, glimmer, glint, glisten, glow, shimmer; blink, flicker, sparkle, twinkle; illumination, irradiation; iridescence, luminescence; brilliance, luminosity, radiance, radiancy, refulgence; finish, glazeNear Antonyms dimness, dinginess, dirtiness, drabness, dullness (also dulness), flatness; grayness, paleness; cloudiness, gloom, murkiness, obscureness, obscurity, somberness

2 the quality or state of having or giving off light the landscapes of the French painter Claude Lorraine have a unique luminance that no other artist has quite captured Synonyms brightness, brilliancy, candor, dazzle, effulgence, illumination, lambency, lightness, brilliance, luminosity, luminousness, luster (or lustre), lustrousness, radiance, refulgence, splendorRelated Words blaze, flare, flash, flicker, light; fluorescence, incandescence, luminescence; burnish, gloss, polish, sheen, shine, shininess; fire, flame, glare, glow; flash, gleam, glimmer, glint, glisten, glitter, scintillation, shimmer, sparkle, twinkleNear Antonyms dimness, gloominess, somberness; cloudiness, haziness, murkiness, obscureness, obscurity; colorlessness, grayness, lackluster, paleness, shadiness, shadowinessAntonyms blackness, dark, darkness, dullness (also dulness), duskiness