brilliance; luster; colorfulness
Refers to vivid brightness, shine, or rich color, often in a visual or artistic context. 精彩 is especially used for this sense.
His paintings are full of brilliance.
この宝石は精彩を放っている。
This jewel emits a brilliant luster.
vividness; life
Describes liveliness, energy, or vividness in expression, performance, or personality. Often used in phrases like 精彩を欠く (to lack vitality).
彼のスピーチは精彩を欠いていた。
His speech lacked vividness.
彼女の演技には精彩がある。
Her performance has life.
His play today lacked its usual spark.
The jewel gleamed brilliantly under the light.