Marker workflows

Using Color Matcher to Find Your Closest Marker Matches

Color Matcher helps you identify the closest markers from your collection to match any reference image or color sample. This guide walks through the complete workflow--from image upload to color extraction to finding perceptually accurate matches using Delta E calculations.

Color MatcherDelta EMarker workflowsimage sampling

How Color Matcher works

Color Matcher bridges the gap between digital reference images and your physical marker collection. Whether you're working from concept art, photographs, or color swatches, the tool extracts colors and uses perceptually accurate Delta E calculations to find the closest matches from your database.

  • Extract colors from reference images using point sampling (click to select) on the canvas.
  • Find the top 3 closest marker matches for each extracted color using CIE94 Delta E calculations, with Delta E values displayed for transparency.
  • Upload your own marker collection or use the demo database to test the workflow before scanning your physical markers.

Step-by-step workflow

Color Matcher uses LAB color space and CIE94 Delta E calculations to ensure perceptually accurate color matching. Follow these steps to go from a reference image to a matched palette ready for your artwork.

Load or upload your marker database

From the landing page, choose "Load demo workspace" to start with sample markers, or upload your own marker collection (CSV/JSON). The marker database is stored in session storage so it remains available across all ColorSpace tools.

Upload a reference image

Drag and drop or select an image file (JPG, PNG, WebP, or BMP up to 10MB). The Color Matcher displays your image on a canvas where you can click to extract specific colors.

Extract colors manually

Click individual points on the image for manual sampling. Each extracted color appears in the results list.

Review Delta E matches

For each extracted color, Color Matcher converts to LAB color space and uses CIE94 Delta E calculations to find the top 3 closest markers from your database. Delta E values are displayed so you can see how close each match is perceptually.

Export selected matches to Palette Viewer

Choose your preferred match for each extracted color, then click "Create Palette." Select your matches and click "View Palette" to send them to the Palette Viewer for further exploration and visualization.

Practical tips from the ColorSpace team

Early adopters working with Honolulu sets shared the practices below. Each one keeps the matcher responsive and prevents palette drift when multiple artists share the same files.

  • Use manual sampling to click key regions in your reference image and capture the colors you actually need.
  • Pay attention to Delta E values: values under 2.0 are typically imperceptible differences, while values between 2-5 show minor but acceptable variation.
  • Load the marker database that matches what you own--start with the Ohuhu demo library or upload an Ohuhu-only CSV/JSON so the matcher ranks just those pens.
  • The demo workspace provides sample markers from multiple brands (Ohuhu, Copic, Prismacolor) to test the workflow before scanning your own collection.

As you grow beyond the demo library, ColorBase makes it straightforward to scan additional Ohuhu releases or entirely different brands. The matcher will weigh every marker equally, but you can keep the Honolulu sets as a baseline while you evaluate new palettes. Explore the Ohuhu Color Palette Generator to see the full Honolulu collection and create harmonious color combinations.

Want a broader workflow for balancing full alcohol marker palettes? Read Building Alcohol Marker Color Palettes with ColorSpace for capture, matching, and export tips that extend beyond the demo library. And if you are preparing your own cards for scanning, follow Preparing Ohuhu Swatch Cards for Accurate ColorBase Scans to keep ColorBase inputs consistent.

Ohuhu matcher FAQ

How do I force Color Matcher to only return Ohuhu Honolulu markers?

Load an Ohuhu-only database before matching. Use the built-in demo workspace (Honolulu sets) or upload your own Ohuhu CSV/JSON--Color Matcher ranks whatever markers you load.

What Delta E should I target for production-ready matches?

Aim for Delta E 2.0–3.0 for illustration work and below 2.0 for critical branded colors. Color Matcher shows the Delta E values next to each suggestion so you can pick the closest acceptable match.

Can I export matcher results into a palette?

Yes. After reviewing each extracted color, click Create Palette and send the selection to the Palette Viewer. From there you can export PNG or JSON and keep harmony context for your Ohuhu set.

Does Color Matcher work for skin tones and pastels?

Yes--load a database that contains your skin-tone or pastel markers (the demo Honolulu sets include both). Sample your reference, then pick the closest matches by Delta E; if you need strict hue control, send the results to the Palette Viewer and enable Hue Lock there.

Where can I browse the full Ohuhu library after matching?

Head to the Ohuhu Color Palette Generator on /markers to explore all Honolulu markers, generate harmonies, and compare your matches with alternative combinations.

Workflow Spotlight

Matcher to palette pipeline

A snapshot of how teams move from inspiration imagery to production-ready palettes without losing fidelity.

  • Upload a reference image and sample colors manually by clicking the canvas.
  • View Delta E scores for the closest matches in your loaded marker database.
  • Choose the preferred matches for each extracted color.
  • Send the selected colors to the Palette Viewer to lock harmonies and export.

Resources & Downloads

3 resources

Evidence & Further Reading

  1. Image Sampling for Color Matching (SIGGRAPH Course)

    Discusses sampling strategies and perceptual considerations when extracting palettes from imagery.

  2. Understanding CIE94 and CIEDE2000 Color Differences

    Practical comparison of Delta E formulas used when evaluating match quality.

  3. Color Sampling and Quantization Techniques

    Background research on color quantization and sampling strategies.

Run your next matching session with confidence

Upload your marker database, record Delta E results, and graduate inspiration boards into production palettes.