Know about Colors

 __________ came up with the first color wheel by the 17th century with the discovery of the visible spectrum of light.

People tend to perceive colors with varied viewing conditions, accordingly, there are about 18 _______ colors i.e 18 followed by 33 zeros.

The science of color is called __________ or sometimes as colorimetry.

Most mammals in the world only see shades of blue and _________.

 ________ is the first color that humans perceive, after black and white.

A ______ is a color that has been made darker with the addition of Black.

Bright pigments of _________ from a 1.1 billion-year-old fossil of cyanobacteria, is the oldest known color as discovered by researchers.

The color with the highest frequency in visible light is _______.

 __________ colors are those which are directly opposite on the color wheel.

Blue was first produced by the ancient ________ who figured out permanent pigment creation for decorative arts.

The term used for the color green in old ______ was grene, which meant young.

A Tint is a color that has been made lighter with the addition of _________.

A recent addition to color language, ______ obtained from umber during the Renaissance period denotes earthiness.

Before getting its name from the fruit, the color orange was referred to as __________ meaning reddish-orange.

A tone is a color that has been changed with the addition of neutral ______.