俱舍論疏 1.150

1.150

「餘顯是此四色差別」者，謂雲、烟、塵、霧、影、光、明、闇。此之八色隨其所應，即青、黃等色之差別。因龍氣等名雲。因火名煙。末散名塵。地氣曰霧。因日名光。因寶、月等名明。障光，明生於中，餘物可見，名影。翻此名闇。雖八差別不同，根本即是青等色也。亦有碧、紅、紫、綠等異，此是淺深不同，離合有異，不別立也。淺青名碧。薄赤名紅。青黃合綠。赤黑合紫。

"The remaining colors are differentiations of these four colors" refers to clouds, smoke, dust, mist, shadow, light, brightness, and darkness. These eight colors, according to what is appropriate, are differentiations of blue, yellow, and so forth. Form caused by the vapor of dragons and so forth is called clouds. That caused by fire is called smoke. Finely dispersed matter is called dust. The vapor of the earth is called mist. That caused by the sun is called light. That caused by jewels, the moon, and so forth is called brightness. That which obstructs light, where brightness arises within it yet other objects can be seen, is called shadow. The opposite of this is called darkness. Although the eight differentiations are distinct, their basis is simply blue and the other colors. There are also distinctions such as bluish-green, pink, purple, and green; these are differences of lightness and darkness, or differences of combination and separation, and are not established separately. Light blue is called bluish-green; pale red is called pink; blue and yellow combined make green; red and black combined make purple.