Different coloured powders

Design Takeaways: colour

January 12, 2024

This is the third blog post in our series of tips for designers and aspiring designers, Design Takeaways, which brings you practical insights into how to improve your design skills and resources you can put to use. Check out the first blog post onUX basics, and the second one ontypography and fonts.

In this article, we’re looking at colour. It’s one of the most important aspects of design and can help to convey emotions, create mood or improve (or reduce!) visual appeal.

What is colour?

Colour is created by light being reflected or emitted from things. AsPantone explains,To see colour, you have to have light. When light shines on an object some colours bounce off the object and others are absorbed by it. Our eyes only see the colours that are bounced off or reflected.

A background with table and chair full of colours
Light reflecting

White light is made up of seven main colours: red, orange, yellow, green, blue, indigo and violet – the colours of the rainbow. When you see a rainbow, you are essentially observing the separation of white light into its individual colours.

A fluid like of colours

At school, most of us are taught that there are three primary colours – red, yellow and blue – and that by combining them, you can create secondary colours – orange (red + yellow), green (yellow + blue) and purple (blue + red). Tertiary colours can be produced by mixing a primary and a secondary colour.

A palette filled with colours

While this traditional colour theory works when mixing colours for painting, designers work with colour differently and work with two colour methods: additive and subtractive.

A color mixer in a software

Additive vs. subtractive colours

Additive colours are created by mixing two or more coloured light sources together. The RGB colour system, which is used for digital displays, such as computer monitors, television screens, and cameras (where light is emitted to create images), is an example of additive colour. It stands for Red, Green and Blue and combines these primary colours of light in various degrees to create a variety of different colours. The more intense each colour is, the closer you get to white light. Combining all three colours at full intensity produces white light.

RGB color venn diagram
CMYK color venn diagram

Subtractive colours, on the other hand, are created by completely or partially absorbing certain light wavelengths and reflecting others. Pantone explains that these colours begin as white and as you add “filters” to the white light, such as ink, this white light takes on the appearance of colour.

CMYK is an example of a subtractive colour model. It’s used for printing, especially in full-colour publications like magazines, brochures, and posters. CMYK stands for Cyan, Magenta, Yellow, and Key (black).

A blue color grid
color cartridges

Instead of emitting light, CMYK works by subtracting colour. The colours are applied in layers of ink or toner. cyan, magenta, and yellow are the primary colours, and black (key) is added for depth and to improve the richness of dark colours. As more colours are added, they absorb light, and the result approaches black.

Colour properties

Different colors with different shades etc.

Colour properties refer to the characteristics that define and describe the visual aspects of colours. They include:

  1. Hue: The type of colour. It distinguishes one colour from another on the colour wheel (a tool used in art and design to show colours and their relationship to each other), for example, red, blue, and green are different hues.

    Red, green and blue feathers
  2. Saturation: Also called chroma or intensity, saturation refers to the vividness or purity of a colour. A highly saturated colour is vibrant, while a desaturated colour appears more muted or greyish.

    colors with different saturation
  3. Brightness/lightness: This property represents the amount of light in a colour. Brightness is often used to describe how light or dark a colour appears. For example, an overexposed photo is much brighter because it has a lot of light in it.

    lightly exposed shot of hot ait balloons
  4. Tone/tint/shade: Tone refers to a colour’s relative lightness or darkness. Tint is a colour mixed with white, making it lighter, while shade is a colour mixed with black, making it darker. For example, you can tint blue to make it lighter or add tone to make it darker.

    Different tones of blue
  5. Colour temperature: This describes whether a colour appears warm or cool. Warm colours have a red or yellow undertone, while cool colours have a blue undertone. For example, a burgundy (red wine) red is cooler than a Christmas red.

    Houses of different colours
  6. Complementary colours: Complementary colours are pairs of colours that sit opposite each other on the colour wheel. For example, the complementary colour of yellow is purple.

    Bananas on a purple background
  7. Analogous colours: Analogous colours are groups of colours that are next to or near to each other on the colour wheel. They usually match well and create serene and comfortable designs. For example, blue, turquoise and green are analogous colours.

    cards of green color going to blue in different shades
    A green flower
  8. Triadic colours: Triadic colours are sets of three colours that are evenly spaced around the colour wheel. This creates a vibrant and balanced colour scheme. Orange, green, and purple form a triadic colour scheme.

    purple lavender flowers
    A triadic color circle showing orange, green and purple

Colour psychology

Colours can create mood or inspire an emotional response, which makes them an important tool for designers. For example, this very useful post on colour combinations fromOberlopoints out the feelings colours can generate in people:

  • Red: excitement, danger, energy, courage, strength, anger

    red flowers
    Hands painted red that forms a heart
  • Orange: creativity, enthusiasm, health, happiness, encouragement, balance

    orange jellyfish
    orange parachute
  • Yellow: sunshine, hope, optimism, light, positivity, freshness

    A sunflower
    A yellow smiley emoji
  • Green: health, nature, renewal, generosity, freshness, environment

    A green flower
    A recyclable box of water
  • Blue: freedom, trust, expansiveness, dependability, faith, inspiration

    A basketball hoop with blue sky as background
    A woman in blue lighthing
  • Purple: royalty, luxury, power, pride, creativity, mystery

    purple fluid
    A yellow fish with purple underwater lighthing

Colour resources for beginner designers

Here are a few resources that may help you in your journey with improving how you use colour as a designer:

three people mainng a large green sheet

We’d love to hear your colour tips too! Share with us on Instagram, @NandosCreativityOfficial.

Design Takeaways: colour | Design News - Nando's Creativity