分享：
Ultramarine Blue plots cooler and bluer than the more saturated French Ultramarine. Temperature aside, both blues have equal permanence, lightfastness and transparency. Ultramarine Blue is slightly less granular in concentrated washes. For less saturation, sedimentation and cost, use Ultramarine Blue straight, for vibrant crayon-like color or mixed with a cool red for dark, effective neutrals.
極致藍與 法國群青 both contain pigment PB29, but Ultramarine has a smaller pigment particle size and is slightly greener and cooler than French Ultramarine, which has a larger pigment particle size and is slightly redder and warmer.
從調色盤中以水和顏料 10:1（重量比）的比例開始，我們的化學家會用圓頭畫筆均勻地塗抹畫卡的上半部，以展示顏料的顏色和特性。對於下半部，他用一支 3/4 英寸的平頭畫筆在顏料槽中蘸取一次，然後以條紋狀塗抹，直到畫筆變乾，這將展示顏料在水洗狀態下的色調和表現。我們在製造過程中會使用這些畫卡進行顏色匹配。.
