by Janice Jones Last Updated February 2026
Have you ever stood in front of a wall of yarn and thought,
“I love all of these… but which ones actually go together?”
Years ago, I had a conversation with my veterinarian who was trying to decide what shade of white to paint the hospital walls. At the time, I remember thinking, “White is white… isn’t it?”
But it isn’t.
Subtle shifts in color change how a space — or a project — feels. And the same is true for knitting and crocheting.
You don’t need a college-level art course to make beautiful color choices. But understanding a few basic principles can help you choose yarn with more confidence and far less second-guessing.
You don’t need to memorize these terms to use them. Even understanding the general idea behind them can guide better color choices.

If you’re new to color theory, here’s a simple way to read this page:
You don’t need to understand everything at once. Start small and build from there.

The basics of color theory begin with the color wheel. The color wheel visually represents all the existing colors arranged in a circular shape.
There are three primary colors: red, blue, and yellow. These colors are called "primary" because they cannot be created by mixing other colors.
Secondary colors are created by mixing two primary colors: orange (red and yellow), green (blue and yellow), and purple (red and blue).
Tertiary colors are created by mixing a primary color with a secondary color. For example, red-orange is a tertiary color created by mixing red (a primary color) with orange (a secondary color).
We can thank Isaac Newton, who was the first to establish a theory of color based on a color wheel. Newton used a prism to split white light into a spectrum of colors which led to the creation of the color wheel.
A few years ago, I knit two scarves using the exact same pattern. One was in deep red and gold. The other was in soft blue and gray.
The red scarf felt bold and energetic, almost dramatic. The blue one felt calm and comforting.
Same stitches. Same pattern. Completely different mood.
That’s the effect of warm and cool colors.
Warm colors, red, orange, and yellow, tend to feel lively and energetic. Cool colors, blue, green, and purple, feel calmer and more peaceful.
When choosing yarn, ask yourself: Do I want this project to feel cozy and energizing, or calm and soothing?
If you create a cozy winter scarf, warm colors like red and orange can make it more inviting. Cool colors like blue and green can make a summer shawl feel more refreshing.

As I mentioned above, each color has a different effect on people. It's generally assumed that red carries power, passion, and energy.
Orange, another warm color, can convey joy and enthusiasm. Yellow is also considered a warm color and projects a feeling of happiness and intellect.
We start moving into cooler colors with green, blue, and purple. Green is associated with growth, ambition, and wealth. Blue will feel tranquil, confident, and peaceful.
Purple is the color of luxury and creativity. We often do not think about black and white when used in projects but these colors call add a dark value or a simple way to add light.
There are seven major color schemes you can use when knitting or crocheting.
1. monochromatic
2. analogous
3. complementary
4. split complementary
5. triadic
6. square
7. rectangle (or tetradic)

A Monochromatic is a color scheme based on only one color. It uses variations of a single hue colors and is created by adding black or white to darken or lighten the base color.
Variegated yarn balls are one example of this. A monochromatic color palette can be used successfully in projects involving household items such as pillow covers, table runners, towels, and blankets. Its subtle colors allow other objects to be placed as accent colors.
Growing up, every room in my childhood home followed a single color story. One room was all shades of pink—another, all shades of blue, and so forth.
My mother loved monochromatic color schemes. At the time, I didn’t think much about it, it simply felt normal.
Looking back, I realize that those rooms shaped my earliest understanding of color. Harmony felt comfortable. Strong contrast felt unfamiliar.
Our early experiences quietly train our eyes to recognize certain combinations as “right.” That doesn’t limit us — it just explains where we start.
When I was expecting my first child, I wanted the nursery to feel warm and different. I chose oranges paired with yellows — bright, layered shades that felt joyful to me.
It may have screamed 1980s style, and nearly everyone around me disliked it. But to me, those colors felt right.
Looking back, I realize I had instinctively chosen an analogous color scheme.
Analogous colors sit next to each other on the color wheel, like yellow, yellow-orange, and orange. Because they share a common base, they feel harmonious and connected.
Even when others didn’t share my enthusiasm, the room never felt chaotic. The colors flowed into one another.
Analogous schemes are often a comfortable step outward from monochromatic. They introduce more variation while still maintaining a sense of unity.
If bold contrast feels overwhelming, analogous colors are often a gentle way to expand your palette without losing harmony.
Color theory doesn’t replace personal taste; it simply explains why something feels balanced or bold.
My first apartment was unapologetically blue and orange, very much in keeping with the 1980s.
At the time, I knew nothing about complementary colors. I just knew I was drawn to the energy of the combination. It felt bold and independent.
Blue and orange sit opposite each other on the color wheel. That makes them complementary colors, pairs that create strong contrast because they are visual opposites.
Complementary colors don’t blend quietly the way analogous colors do. They energize each other. Each one appears brighter when placed beside its opposite.
At first, the contrast in my apartment felt dramatic. Over time, it grew on me. I began to appreciate how the orange warmed the blue, and how the blue grounded the orange. I loved blue, but blue alone did not define my mood.
In knitting and crocheting, complementary colors can create projects that feel lively and dynamic — especially in colorwork patterns. The key is balance. Let one color lead, and allow the other to support it.

A split complementary scheme starts with one color and then uses the two colors adjacent to its opposite on the color wheel.
For example, if you start with blue, instead of pairing it with orange (its complement), you would use yellow-orange and red-orange.
This softens the intensity of a direct complementary scheme while still creating contrast.
Split-complementary palettes are useful when you want energy without harsh contrast.

During the years I worked as a preschool teacher in the 1980s and 90s, nearly everything I created used the same three colors: red, blue, and yellow.
Bulletin boards, classroom decorations, and learning materials, those three colors felt foundational. Bright. Clear. Balanced.
Even when my son was born, and I decided to knit him a blanket using a very traditional pattern, I instinctively reached for red, blue, and yellow. It may have reflected the era, but it was also my way of bringing three distinct colors into something classic.
Without realizing it at the time, I was using a triadic color scheme.
Triadic colors are evenly spaced around the color wheel — like red, yellow, and blue. Because they are balanced around the circle, they create a sense of visual stability, even when the colors themselves are bold.
Triadic schemes can feel playful and energetic, which is why they’re often used in children’s designs and graphic patterns. In knitting and crochet, they work beautifully in stripes, motifs, and colorwork where you want strong contrast without chaos.
The key, as always, is proportion. Let one color dominate and allow the others to support it.

When I look back at the explosion of colorful granny squares in the 1960s and 70s, I see something more than crochet.
I see an era that celebrated abundance.
The more color, the better.
The brighter, the bolder, the louder, the more modern it felt.
Personally, I always preferred fewer color choices. I longed for calmer rooms, more restraint. But the cultural voice of the time was strong, and like so many crocheters, I filled my home with multi-colored granny squares.
Looking at it now, I realize many of those designs leaned toward a square or tetradic color scheme.
Starting with one color, the other three colors are found equidistant from each other on the color wheel. This creates a square or diamond shape and provides high contrast to your design. An example of these colorwork patterns includes red, blue, green, and orange.
A square color scheme uses four colors spaced evenly around the color wheel. It creates high contrast and energy by balancing warm and cool tones.
This is very similar to a tetradic (rectangle) scheme, which pairs two complementary color sets.
These schemes are:
They can feel joyful and expressive, but they can also feel overwhelmed if every color competes equally.
What those granny squares taught me, and what I understand more clearly now, is that color needs hierarchy. When every color is equally loud, nothing gets to rest. But when one color leads and the others support it, even four colors can feel harmonious.
To understand the full visible color spectrum, it's important to review a few basic definitions. These terms are helpful, but you don’t need to master them to choose beautiful yarn.
The terms color and hue are often used interchangeably by artists, designers, and in the field of fiber arts. However, they mean different things. “color” refers to all colors, including black, white, and gray.
In contrast, “hue” refers to the origin of the color we see, such as red, blue, or yellow. It is the base of the color and is always one of the six primary and secondary colors on the color wheel.
A tint is a lighter version of a given hue. It is a hue with only white added to it, not a second color. A tint can range from a hue barely lighter than the original to almost white with a tiny amount of color in it. Sometimes a tint can seem brighter than the original hue, but it is paler.
This is the opposite of a tint. A shade is a hue with only black added to it. It can include varying amounts of black; the resulting color may be barely darker than the original hue or almost black. An easy way to remember this one is to think of how the grass in the shade of a tree seems darker than the grass in the sun.
This is very similar to tint and shade, but instead of being a hue with white or black added to it, it is a hue with only gray added.
The gray added to make a tone must only consist of black and white, no other colors (many colors that are considered gray have a base that is a hue). Toned colors tend to be viewed as more sophisticated than pure hues.
Consider the color theory principles we've discussed when choosing yarn for your project. Think about the mood you want to convey and the colors that will create that mood. Consider the color of the garment you'll be wearing with your project and choose colors that complement or contrast it.
Color theory can also be used to create interesting and unique patterns in your projects. Experiment with different color combinations and see how they interact with each other.
Use color to create depth and interest in your patterns and consider the mood you want to convey with each pattern.
Here are some additional tips for using color theory effectively in your knitting and crocheting projects:
Years ago, I was sitting in my veterinarian’s office while he tried to decide what shade of white to paint the hospital walls.
Not beige.
Not gray.
Not cream.
White.
He had paint samples spread out across the counter, cool whites, warm whites, soft whites with a whisper of yellow, others with a hint of blue. At the time, I remember thinking:
White is white… isn’t it?
But as he explained how lighting would affect the room, how a cooler white might feel sterile and a warmer white might feel calming, something shifted.
White wasn’t just white.
It had a temperature.
It had a mood.
It had an intention.
And that’s really what color theory is about.
Not rules.
Not memorizing seven schemes.
Not forcing yourself into red, blue, and yellow because that’s what you were taught — or filling a room with granny squares because the decade demanded it.
Color theory gives you language.
It gives you awareness.
It allows you to pause in the yarn aisle, surrounded by a wall of possibility, and ask:
Over the years, I’ve moved from monochromatic rooms to bold complementary experiments, from triadic preschool classrooms to era-defining granny squares.
And somewhere along the way, I learned what my veterinarian already understood:
Even white has personality.
When you begin to see color this way, you stop copying and start choosing.
And that’s when your knitting and crocheting projects stop being just functional…
…and start becoming intentional.
Here are seven examples of colorwork knitting.
and, please, don't forget to share.