If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

### Course: Pixar in a Box>Unit 5

Lesson 1: Introduction to color

# Spectrum of light

Every light sources makes a different kind of rainbow, known as a spectrum. Learn how color is a property of light, and how different light sources create various color effects. Explore the spectrum of sunlight, candlelight, and other sources, and understand the role of color at Pixar.

## Want to join the conversation?

• At you see a graph of a candle spectrum. The y-axis being intensity and the x-axis being wavelength (nm). What is nm?
• nm is nanometer
• I’m in 5 th grade and I actually enjoyed it gave me a different view of color and I learned lot I hope this helps lol
• At if white contains all visible colors why when i mix all colors from crayons i dont get white?
• Crayon colors work differently from colors of light. While each color of light added causes a new color to be reflected, each new color of a crayon or paint will cause more colors to be absorbed. Mixing red and yellow paint will give you orange (the same goes for red and yellow light), but mix red and green paint? You get a muddy color. Mixing red and green light, on the other hand, produces yellow. Hope this helped!
• what i dont understand may i have some help? #ihateschool
• Try turning what you are learning into something that you like, if you struggle with math but like Minecraft, you might try "32 grass blocks + 32 grass blocks = a stack of grass blocks, or 64 grass"
• Colour helps me make simply boring things a bit more bright and fun. :D
• wow khan academy is really nice