The term blue generally describes colours perceived by humans observing light with a dominant wavelength that's between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet.

The meaning of BLUE is of the color whose hue is that of the clear sky : of the color blue. How to use blue in a sentence.

2024年2月20日 · Blue is a color often found in nature, such as the pale blue of a daytime sky or the rich dark blue of a deep pool of water. This is perhaps why we often describe blue as calm and serene. Yet, as a cool color, blue can sometimes seem icy, distant, or even cold.

Blue, a color that commands a unique position in the color spectrum, has permeated various aspects of our lives, imbuing them with profound meanings and emotions. As the color of the sky and sea, it has been a ceaseless source of inspiration and symbolism throughout history and across cultures.

2025年2月26日 · Blue, in physics, light in the wavelength range of 450–495 nanometers in the visible spectrum. In art, blue is a color on the conventional wheel, located between green and violet and opposite orange, its complement.

Blue is the color of the Earth 's sky and sea. Earth looks blue when seen from outer space by astronauts. It is the color of cold, introversion and openness, by opposition to the red, which is the color of warm, extroversion and the closure.

2023年7月11日 · In this blog post, we dive into the beautiful depths of the color blue, exploring its history, symbolism, similar shades, and complex color codes. Blue, as timeless as the sky and sea, has a rich and storied past.

Varieties of the color blue may differ in hue, chroma (also called saturation, intensity, or colorfulness), or lightness (or value, tone, or brightness), or in two or three of these qualities. Variations in value are also called tints and shades, a tint being a blue or other hue mixed with white, a shade being mixed with black.

any of a group of colours, such as that of a clear unclouded sky, that have wavelengths in the range 490–445 nanometres. Blue is the complementary colour of yellow and with red and …

Blue definition: The hue of that portion of the visible spectrum lying between green and indigo, evoked in the human observer by radiant energy with wavelengths of approximately 420 to 490 nanometers; any of a group of colors that may vary in lightness and saturation, whose hue is that of a clear daytime sky; one of the additive or light ...