Contents
  1. Color scheme: a plain-English definition
  2. How color schemes are usually described
  3. Roles within a logo color scheme
  4. Why the color scheme matters when creating a vector logo
  5. Vector colors versus raster content
  6. How a color scheme is specified for delivery
  7. File containers and color
  8. Scheme variations a logo usually needs
  9. In short

Color scheme: a plain-English definition

In logo design, a color scheme is the deliberate set of colors chosen for a mark, together with the relationships between them and the rules for where each one goes. It answers three questions: which colors the logo uses, how those colors relate to one another, and which part of the artwork each color is assigned to.

People often use "color scheme" and "color palette" interchangeably. When a distinction is drawn, the palette is the collection of colors itself, while the scheme also covers the logic behind the selection and the way the colors are applied. A list of five colors is a palette. That list, plus a note that the darkest color is always the wordmark and the brightest is reserved for a single accent shape, is a scheme.

How color schemes are usually described

Schemes are commonly named by where their colors sit on a color wheel, the circular diagram that arranges hues (the basic color families such as red, blue or green) by their relationships. These labels describe a relationship between colors rather than a fixed set of values:

  • Monochromatic: variations of one hue made lighter, darker or less saturated.
  • Analogous: hues that sit next to each other on the wheel.
  • Complementary: two hues roughly opposite each other on the wheel, which produce strong contrast.
  • Split-complementary: one hue paired with the two hues on either side of its opposite.
  • Triadic: three hues spaced evenly around the wheel.
  • Neutral-based: mostly black, white or grays, sometimes with one accent hue.

Palette generators work from these same relationships. You pick a starting color, choose a rule, and the tool proposes companion colors. The output is a starting point. A designer still decides which colors belong in the final logo and how each one is used.

Roles within a logo color scheme

A working scheme gives each color a job. Common role labels include the following, though naming conventions vary between studios and brand guidelines:

Role | What it usually does in the logo
Primary | The dominant color most associated with the mark, often used for the symbol or the largest shapes
Secondary | A supporting color for other parts of the mark or the wordmark
Accent | A color used sparingly to draw attention to one detail
Neutral | Black, white or gray used for text, outlines or backgrounds

In vector artwork, a logo is built from paths: mathematically defined lines and curves that stay sharp at any size. Color isn't baked into the geometry. It's assigned as an attribute of each path, either as a fill (the color inside a closed shape) or a stroke (the color applied along the path's outline). The color scheme therefore works as a set of assignments laid over the geometry, and it can be changed without redrawing any shapes.

Most vector editors let you save scheme colors as swatches, which are named, reusable color definitions. Some applications also support global or linked swatches. With these, editing the swatch updates every object that uses it, so you can adjust a scheme across a whole logo in one step instead of recoloring shapes one by one. Whether this linking is available, and what it is called, depends on the application.

Vector colors versus raster content

Swatch-based recoloring only affects vector fills and strokes. If a logo file contains raster content (an embedded photo, a texture, or a pixel-based effect), those pixels keep their own color values and won't follow a swatch change. A scheme that is meant to be edited or reproduced consistently is easier to manage when the colored parts of the logo are true vector shapes rather than embedded images.

How a color scheme is specified for delivery

A logo appears in different places, and each place reproduces color differently. Because of this, a delivered color scheme is usually written in several color systems:

  • RGB: red, green and blue light values, used for screens.
  • Hex codes: a shorthand notation for RGB values, common in web and app work.
  • CMYK: cyan, magenta, yellow and black ink values, used for process printing.
  • Spot colors: premixed inks identified by a matching-system name or number, used when a print job needs a specific ink rather than a CMYK mix.

These systems don't map perfectly onto one another. A vivid screen color may have no exact CMYK equivalent, so its printed version can look duller. Conversion results depend on the color profiles and print conditions involved. For that reason, the values for each system are usually chosen and checked deliberately rather than generated by automatic conversion alone. No specific color values or conversion figures were supplied for this entry, so none are given here.

A simple scheme specification in a brand guide might be laid out like this, with real values filled in once they are decided and proofed:

Color name:   Primary
Role:         Symbol and main shapes
RGB:          [value]
Hex:          [value]
CMYK:         [value]
Spot:         [ink reference, if used]

File containers and color

The file format, or container, affects which parts of a scheme survive delivery. SVG is a web-oriented vector format and is generally used with screen colors. Formats aimed at print workflows, such as PDF, EPS and native design-application files, are more commonly used to carry CMYK or spot color definitions. Support differs between applications and versions, so check how the receiving software reads the colors in a delivered file. Don't assume a format preserves every color definition.

Scheme variations a logo usually needs

A complete color scheme usually defines more than the full-color version of the logo. Common additions are a one-color version for single-ink printing or engraving, a reversed version for dark backgrounds, and a black or white version for situations where color isn't available. Planning these variations as part of the scheme keeps the logo recognizable when the full palette can't be reproduced.

In short

A color scheme is the chosen set of logo colors, the relationship that ties them together, and the rules for applying them. In a vector logo it is stored as fill and stroke assignments, often managed through swatches, and specified in the color systems needed for screen and print delivery.