How colors work: color relationships, mixing, and perception.
Test your knowledge with these top questions!
In photo editing, which slider shifts reds toward orange or purple?
Moving the hue slider cycles the color family, so reds can swing toward orange one way and purple the other.
In offset CMYK printing, how does each ink reach the paper?
Each ink gets its own plate that layers tiny dots of cyan, magenta, yellow, and black to build the image.
In color theory, hue refers to which aspect of a color?
Red, blue, and green are different hues; adding white or black changes lightness while the hue family stays the same.
In the RGB model, which color shows when all light is switched off?
RGB builds color from glowing light, so a screen with all light off shows black.
Which warm color tops a vertical traffic light to signal stop?
Red means stop because it stays visible at long distances and people already link it to danger and brake lights.
Which trio are the cool colors on a basic color wheel?
Designers use these hues to suggest water and sky, which helps rooms and logos feel calmer.
Which bulb label produces a warm yellowish light for living rooms?
Lower Kelvin numbers look yellower; 2700K matches old incandescent bulbs that many homes already used.
What color property makes a fire-engine red look bolder than a dusty rose?
Both reds share a red hue, but fire-engine red carries far more pure color and less gray.
Adding white to a pure hue produces which color type?
Tinting lightens a hue without changing its color family, which is why pink is often described as a tint of red.
What practical advantage puts yellow on many caution signs?
Black text on a yellow background stays readable at long distances, which helps drivers notice warnings early.