Reference: Colours
Hastings
The colours named in OT and NT, as in other ancient literatures, are few in number, and of these several are used with considerable latitude.
1. White as the colour of snow in Isa 1:18, of the teeth described as milk-white (Ge 49:12), and of horses (Zec 1:8; 6:3,6); also of wool (Re 1:14)
See Verses Found in Dictionary
But He answered them, {[{[These words are omitted in most ancient manuscripts: "When the sky is reddish in the evening, you predict fair weather [for the next day].
And He ordered all of them to recline in groups on the green grass.
His clothing became dazzling and extremely white; whiter than anyone in the world could [possibly] launder them.
They placed a purple robe on Him [Note: Matt. 27:28 calls this a "scarlet" robe. In that day, any color with a mixture of "red" in it was often called "purple"], and making a wreath out of thorns, they placed it on His head.
The soldiers wove thorny twigs into a crown and placed it on His head and dressed Him in a purple robe.
You people show [i.e., by your conversions] that you are a letter from Christ, delivered by us [i.e., the result of our ministry], not written with ink but with the Holy Spirit of the living God; not on stone tablets [i.e., as in the case with Moses' ministry], but on tablets of the human heart. [See Jer. 31:33; Heb. 8:10].
And His head and hair [i.e., probably meaning the hairs of His head] were as white as wool, or as snow, and His eyes were like flaming fire.
And when the Lamb broke open the third seal, I heard the third living being saying [to the one on the black horse ?], "Come [out]." So, I looked and before me [stood] a black horse, and the man riding on it had a pair of scales in his hand.