Yellow, a colour of grace, sunlight, warmth, brightness, and positivity, and optimism. Yellow, a colour that dazzles the eyes and stimulates the mind. A colour that depicts the readiness to take flight as seen in traffic lights. As one of the primary colours in the RGB colour model and a key part of the subtractive Cyan, Magenta, Yellow, Key (CMYK) colour model, yellow plays a crucial role in nature. This colour is formed through the combination of light wavelengths, and its scientific and psychological composition can be explored through various lenses, physics, art, design, and culture, inclusive.
The Psychology of colour Yellow:
The brightness and intense shade of yellow, particularly when one is exposed to too much of it, can be overwhelming and may even provoke feelings of anxiety or agitation. Yellow is the colour of optimism and hope - the readiness to take flight, the colour of happiness, energy, sunshine, and the right to dreams. It is generally attributed as the colour of warmth, which can promote feelings of cheerfulness and stimulate mental activity. Yellow is used to attract attention and evoke a sense of friendliness. Yellow is associated with caution like yellow traffic lights and caution tapes. Even in Chinese, yellow is traditionally associated with the earth and is considered a colour of good luck. And in Buddhism, yellow is associated with the Middle Way, highlighting balance and the path to enlightenment. This colour may stimulate mental processes and encourage communication, making it a great choice for social spaces and environments aimed at creativity.
The Physics of Yellow:
In terms of light, yellow is a secondary colour that is created by the combination of red and green light wavelengths. When these two colours of light mix, they produce yellow due to the way our eyes perceive different wavelengths. The spectrum of visible light ranges from red (longer wavelengths) to violet (shorter wavelengths). Yellow typically falls within the wavelength range of approximately 570 to 590 nanometers.
Yellow in Pigments:
When discussing yellow in terms of pigments, such as paints and dyes, the composition changes. In the subtractive colour model (used in art and printing), yellow is a primary colour. Common yellow pigments include:
- Hansa Yellow:A synthetic pigment that is light-fast and vibrant, commonly used in modern art supplies.
- Aureolin:
A more transparent and cooler yellow, made from cobalt aluminate.
- Cadmium Yellow:
A bright, opaque yellow made from cadmium sulfide, known for its light fastness and vibrancy.
- Yellow Ochre: A natural earth pigment that yields a muted, warm yellow tone, rich in iron oxide.
These pigments contain various chemical compounds, which determine their shade, opacity, and permanence.
Yellow in its natural form:
The sunshine colour - the brightest and most vibrant of all colours, I welcome you to meet yellow in it's most pure and natural form. As an integral part of our natural world, from the sun-kissed fields of sunflowers to the radiant plumage of canaries, yellow in it's natural form manifests in minerals, plants, animals, and natural phenomena.
From the diverse array of minerals and rocks that display a range of yellow hues, like Sulfur (a bright yellow mineral found in volcanic regions) to the plant kingdom that is awash with different yellow flowers and plants like the Sunflowers, Daffodils, and Banana trees. From the animal kingdom that is home to a plethora of unique creatures like the Canaries and butterflies to the breathtaking sunsets that paint the sky with hues of yellow and orange, indeed, Colour yellow stands majestic amongst other colours with great pride.
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