Primary Colors

Blue — Wavelength 450-495 nanometers. Blue light regulates the human sleep cycle, suppressing melatonin and signaling wakefulness. Plants absorb it to drive photosynthesis. Psychologically it promotes calm and focus. Of all colors, blue connects most directly to both human biology and the natural world — which is why everyone's sky is blue.

Red—Wavelength 620-750 Nanometers. Red light carries the least energy of the visible spectrum and bends least through a prism—which is why it appears at the outer edge of every rainbow. Plants use red wavelengths alongside blue to drive photosynthesis and flower production—the very oxygen we breathe is the result. Psychologically red signals urgency, warmth, and energy—it raises heart rate and increases alertness. It is the first color the human eye loses in low light, and the last color of sunset.

Green—495-570 nanometers. Green sits at the center of the visible spectrum—the wavelength the human eye is most sensitive to, capable of detecting it at lower light levels than any other color. Chlorophyll absorbs green light least efficiently, which is why plants appear green—they reflect it back to us. Yet red and green wavelengths working together drive the photosynthesis that sustains virtually all life on Earth. Psychologically green signals safety, growth, and balance. It is the color of every forest, every field, every living thing that has ever grown toward the light.

Grayscale—The visible spectrum contains all color. Grayscale reveals what remains when color is removed—the pure architecture of Light itself. Luminosity, contrast, form, shadow. These are the structural foundations that color inhabits. In grayscale, light speaks without the distraction of wavelength, showing its essential geometry. Where color reveals what Light contains, grayscale reveals the nature of Light.