Sound and light are the same thing. Both are waves measured in frequency. Pick your key. We’ll scale every note up through the octaves until it becomes visible light, then give you the exact palette your song is already vibrating in.
Upload a reference photo if you want. Describe the scene, mood, props, whatever's in your head. Our custom AI generator uses your key's colors as the dominant palette and renders a one-of-one cover. Delivered to your email and on-screen in about 60 seconds.
Commercial license included. Spotify-ready 1:1 at full resolution.
Each note has a fundamental frequency in Hz. We double it, shifting it up by octaves until it lands in the visible light spectrum. Then we convert that frequency to a wavelength (λ = c ÷ f) and map the wavelength to sRGB. Every note becomes a specific hue, mathematically.
| Note | Hz | Octaves ↑ | THz | λ (nm) | Color |
|---|
Low frequencies feel warm. Bass, yellow light. High ones feel bright. Treble, blue light. Different senses, same words. That’s not coincidence. It’s the same math.
A musical key is a group of frequencies that relate mathematically. Scale those frequencies up about 40 octaves and they cross into the visible spectrum, roughly 430 to 750 trillion Hertz. The same ratios that make a chord sound consonant make a palette feel cohesive.
Ever notice when a song’s cover art just felt right? Maybe your brain noticed the color matched the sound.