Brightness

n.	1.	The quality or state of being bright; splendor; luster; brilliancy; clearness. A sudden brightness in his face appear. - Crabbe.
	2.	Acuteness (of the faculties); sharpness 9wit. The brightness of his parts . . . distinguished him. - Prior.

Noun	1.	brightness - the location of a visual perception along the black-to-white continuum Antonyms: dullness, dulness - a lack of visual brightness
	2.	brightness - intelligence as manifested in being quick and witty Synonyms: smartness, cleverness
	3.	brightness - the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun" Synonyms: brightness level, luminance, luminosity, luminousness, light

(graphics)

brightness - (Or "tone", "luminance", "value", "luminosity", "lightness") The coordinate in the HSB colour model that determines the total amount of light in the colour. Zero brightness is black and 100% is white, intermediate values are "light" or "dark" colours. The other coordinates are hue and saturation.

Munsell chroma, Technicolor, acuity, acuteness, adroitness, agility, alertness, aptitude, aptness, attention, attentiveness, auspiciousness, beneficence, benevolence, benignancy, benignity, blare, blaze, blazing light, blinding light, blitheness, blithesomeness, braininess, bright color, bright light, bright side, brilliance, brilliancy, brilliant light, burst of light, cheer, cheerfulness, cheeriness, cheery vein, chroma, chromatic color, chromaticity, clear thinking, cleverness, color, color quality, colorfulness, colorimetric quality, cool color, dazzling light, dexterity, docility, educability, effulgence, esprit, eupeptic mien, facility, fair weather, favorableness, flair, flamboyance, flood of light, fortunateness, fulgor, gaiety, geniality, genius, giftedness, gifts, gladness, gladsomeness, glamour, glare, glaring light, gloriousness, glory, good auspices, good cheer, good omen, gorgeousness, happiness, heavenliness, hopefulness, hue, impressionability, intelligence, intensity, keen-wittedness, keenness, lightness, luckiness, luster, malleability, mental alertness, mercurial mind, moldability, motivation, native cleverness, neutral color, nimble mind, nimble-wittedness, nimbleness, nous, optimism, plasticity, pleasantness, pliability, promptitude, promptness, propitiousness, prosperousness, punctuality, pure color, purity, quick parts, quick thinking, quick wit, quick-wittedness, quickness, radiance, radiancy, radiant splendor, ravishingness, readiness, ready wit, receptivity, refulgence, refulgency, resplendence, resplendency, richness, rosy expectation, sanguine humor, sanguineness, saturation, savvy, sharp-wittedness, sharpness, sleeplessness, smartness, smarts, splendidness, splendor, splendorousness, splendrousness, sprightly wit, streaming light, sublimity, sunniness, sunny side, susceptibility, talent, teachability, teachableness, tint, tone, trainableness, value, vividness, wakefulness, warm color, willingness, winsomeness

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