The color that saves energy depends on the application: Black saves the most energy on OLED screens (phones, TVs) because pixels turn off, while light colors like white and pale shades save energy in buildings (roofs, walls) by reflecting heat, reducing air conditioning use. For lighting itself, blue light is often most efficient to produce, but yellow can trick the eye into perceiving more brightness with less light.
Blue is the most efficient color; in fact, it consumes considerably less energy than other shades. It is not the cold or bluish white that you might get from standard white light, but a deep, rich blue. In addition to blue, other colors such as red, green, magenta, cyan and yellow also prove to be energy-efficient.
WHITE is one of the best colors to attract positive energy. White light contains all the colors of the rainbow when seen through a prism. This makes the color white very powerful indeed.
'The colour that can make us feel drained and tired that most people don't realise is grey,' explains Karen Haller, a behavioural design consultant, colour specialist and author of bestseller The Little Book of Colour.
The cheapest, most efficient color to produce is blue because of its short wavelength, which requires a smaller amount of energy to produce light in comparison to colors like orange, which have a longer wavelength and require more energy.
The best night light colors for sleep are red and amber, as they are warm and soothing colors that promote a good night's sleep. It's thought that colors close to red on the light spectrum stimulate melatonin production. Red light has a lower color temperature than regular sunlight, making it ideal for sleep.
LED light disadvantages include higher upfront cost, potential health impacts from blue light and flicker (causing eye strain, headaches, sleep disruption), dimming incompatibility, directional light limitations, temperature sensitivity, and sometimes poor color rendering or buzzing, though many of these issues are being addressed with quality improvements.
Black and white are colors believed to protect against evil. Black absorbs negativity, while white reflects it away. Both colors are used in rituals for spiritual protection and maintaining a clean aura.
To summarize: The color of light affects our biorhythm. If the light is particularly yellow or orange, the body prepares itself for sleep. It then releases the sleep hormone melatonin, which makes us tired. White-blue light, on the other hand, signals to our body that it is daytime or that it should stay awake.
At the highest vibration, the two ends of the colour spectrum meet together and produce violet. Studies have shown that the colours can have an impact on our feelings and mood. It can affect the way we perceive the world.
White is the most effective colour for removing negativity, representing purity and peace. Light blue and green also work well to promote harmony and relaxation in your home.
The color of Orange or scarlet is the main color for attracting money which makes it an excellent color choice for a wallet. As Brown represents the earth, it is a color that promotes and encourages saving. If you are looking to be more saving savvy or start a new savings regime, Brown is an ideal wallet color.
YELLOW: Optimism and Happiness
Yellow has been psychologically proven to boost energy, awareness, and even metabolism! It stimulates our creative process, which can help us get “unstuck” and make quick decisions. It's a seriously powerful color when it comes to colors that represent positive energy.
Black is arguably the most powerful of all colors on the color spectrum. Dominant, Magnetic and Mysterious, Black is a force to be reckoned with.
In 2025, warm neutrals like beige, taupe, and creamy off-whites are replacing gray as the go-to base color in interior design, bringing warmth and coziness, while bolder colors like earthy browns, rich greens, and even purples are also trending for accents, moving away from cool grays for more inviting, character-filled spaces.
Red – The Energy Enhancer
If you need a burst of motivation, red is your go-to color. It's bold, intense, and full of energy, instantly grabbing attention and boosting adrenaline. Red is known to increase heart rate and blood flow, making you feel more alert and ready to take action.
Like red, orange is a highly stimulating color, so it's important to use it in moderation. Too much orange in a space can cause restlessness or anxiety.
Blue light has the strongest impact. Exposure to blue light (and white light, which contains blue light) during the sensitive period can make it difficult for you to fall asleep and stay asleep.
“For a better sleep, keep your room dark, but if you need light, choose warm colors like red or amber. Avoid blue light from electronic devices as it can trick your brain into thinking it's still daytime and disrupt your sleep-wake cycle.”
Blue remains the most recognized and powerful color in evil eye tradition, serving as the gold standard for protection against negative energy and malicious intentions. This classic shade has earned its reputation through centuries of spiritual practice across Mediterranean, Middle Eastern, and South Asian cultures.
Therefore, red seems to guide attention, specifically in emotionally-valenced circumstances, indicating that an emotional context can alter color's impact both on attention and motor behavior.
Astrology suggests that wearing black can disrupt the natural energy flow for women of certain zodiac signs like Aries, Leo and Libra. Black color may amplify aggression in Aries, diminish warmth in Leos, and dull the Venusian glow of Libras.
We suggest using incandescent or halogen bulbs throughout the day + night if you're after a greater sense of well-being. Also - unlike most harshly flickering LED or fluorescent bulbs - incandescents (and color-correct halogens like Chromalux®) will also be the healthiest type of light for your eyes!
LED lights and our devices do contain a significant amount of blue light (but with important caveats and qualifications - see below), and the concern is that excessive use during evening hours will cause our bodies to continue the production of melanopsin, making it harder to fall asleep naturally.
The positive side of the LED is called the "anode" and is marked by having a longer "lead," or leg. The other, negative side of the LED is called the "cathode." Current flows from the anode to the cathode and never the opposite direction.