Alert Quote by Rogier van der Heide
“There is the idea that, when we look at things, it is the yellow light that helps us the most, that we are the most sensitive for. But our circadian rhythms, which are the rhythms that help us to wake and sleep and be alert and relaxed and so forth and so on, they are much more triggered by blue light.”
About This Quote
Source Interview: Lighting Design Talk, 2019
Yellow light draws attention, but blue light aligns with our biological clock, influencing alertness and sleep patterns.
In simple terms: Yellow catches eye; blue sets rhythm.
Design environments with blue light for alertness and yellow for focus.
Themes
Mood
Type
When to use this quote
- office lighting
- smart home lighting
- productivity spaces
- night shift workers
- healthcare facilities
Key Concepts
Questions to Reflect On
- How does lighting affect your daily energy?
- What balance of light improves your focus?
Blue light can disrupt sleep if overused at night.