Colormind
Colormind is a free, browser-based color palette generator driven by a deep neural network. It builds five-color schemes in one click, lets you lock the shades you like, pulls palettes out of uploaded images and exposes a REST API.
What is Colormind?
Colormind is a color scheme generator built on deep learning. Its home page puts it plainly: Colormind is a color scheme generator that uses deep learning. It can learn color styles from photographs, movies, and popular art. The interface is a single strip of five colors, each swatch lockable, with one Generate button. Nothing to configure, no account to open. Behind that strip sits a model the author documents on his own blog. A first attempt built on an LSTM was abandoned because it produced dull browns and greys: the model is afraid to be wrong, it likes to choose middling values. The generator that shipped is a GAN derived from pix2pix, modified to perform infill on partial palettes, so that two locked colors are enough for it to complete the missing swatches. It was trained on Adobe Color data plus a hand-picked selection of Dribbble palettes, on an NVIDIA GPU at a little over an hour per epoch, and the production generator is an ensemble of models trained with varied hyperparameters. The generator's L1 term has the strongest visual effect: raise it and the output becomes less random, but also less colorful. Colormind puts the result on three surfaces. The raw strip on the home page; a demo Bootstrap landing page; and a dashboard template built on Paper Dashboard and Material Dashboard. Seeing a palette on a real interface rather than an abstract band is the tool's most useful trick. A fourth page extracts a palette from an image you upload, deliberately not looking for the most representative colors but for colors that work together, through a semi-random technique the author calls generative-MMCQ, with a hand-trained classifier acting as gatekeeper; every click returns a different result. A public REST API exposes the same generator, with /api/ and /list/ endpoints and two permanent models, "default" and "ui". Themed datasets rotate daily, recent examples including the 1963 Technicolor film Contempt, Flowers, Only God Forgives and Pokemon Crystal sprites. The tool is free, needs no account and runs entirely in the browser. It is a personal project by Jack Qiao, also the author of huemint, brandmark, fontjoy and poolors, who is candid about its ceiling: It's not perfect and does require some human discretion.
What it does
- Generate a coherent five-color palette in a single click
- Lock one or more colors and let the model complete the rest
- Extract a palette from an uploaded image
- Preview the palette on a demo Bootstrap landing page
- Preview the palette on a dashboard template (Paper Dashboard, Material Dashboard)
- Switch models: "default", "ui", plus themed models refreshed every day
- Call the generator from your own application through the REST API
When to use Colormind / When not to
A quick filter to help you decide if Colormind is the right fit.
When to use Colormind
- Graphic designers and art directors who need a credible starting palette rather than a finished brand system
- UI and UX designers, who can see the generated palette applied to a demo Bootstrap landing page and to a dashboard template before committing to it
- Front-end developers, who get a ready-made Bootstrap theme and a REST API to call the same generator from their own code
- Illustrators, colorists and visual artists looking for chromatic inspiration drawn from films, photographs and popular art
- Freelancers and early-stage founders with no design budget: the tool is entirely free and needs no sign-up
When not to use Colormind
- Brand teams that need to store, version and share palettes: there is no account, no library and nothing is saved
- Accessibility-driven teams: the site never mentions WCAG contrast checking, so nothing guarantees a generated palette is usable on a public site
- Designers who work from file exports: no ASE, CSS or SVG export is documented anywhere on the site
- Product teams wanting to embed color generation commercially: the API is free for personal and non-commercial use only, and commercial use requires a prior agreement by email
- Regulated or enterprise buyers: no privacy policy, no terms of service, no third-party integration and no structured support beyond a single personal email address
How to use Colormind
A typical end-to-end flow, from setup to results.
- Open colormind.io in any browser: no account, no installation
- Click Generate to get a random five-color palette
- Pick a starting color and lock its swatch; the site points out that where the color sits in the strip changes the outcome
- Try the same locked color in different positions to see how the model reacts
- Lock two complementary colors at the two ends of the strip: the model tends to produce good intermediates
- Move two contrasting colors closer together to push the model towards triadic or more complex schemes
- Open the Bootstrap page to see the palette on a demo landing page; the site advises selecting the central (main) color first, then generating the rest
- Open the Paper Dashboard or Material Dashboard template page for the dashboard preview
- Go to the Image Upload page to upload a picture and pull a palette out of it, clicking Generate again for further suggestions
- For a software integration, POST {"model":"default"} to http://colormind.io/api/, and GET http://colormind.io/list/ to list the models available that day
Pros & Cons
Pros
- Completely free, with no account and no sign-up
- Immediate to grasp: one button, five swatches
- Results shown live on a real interface, a landing page and a dashboard, rather than on a strip of swatches alone
- Palette extraction from a reference image
- Themed models refreshed daily, so the inspiration changes from one day to the next
- Documented REST API, with curl and JavaScript examples supplied
- The technical approach (GAN, generative-MMCQ) is publicly documented on the blog
Cons
- No privacy policy and no terms of service published
- No account, no saved palettes, no history
- No documented file export: neither ASE, nor CSS, nor SVG
- API off limits for commercial use without a prior agreement by email
- The API is documented over plain HTTP (http://colormind.io/api/), not HTTPS
- Around 30 seconds of announced downtime every day while the models reload
- No accessibility or contrast checking, no mobile app, no third-party integration, and support reduced to a single personal email address
Pricing & Plans
Colormind is offered free of charge. The web tool is entirely free, with no account, no paid tier and no pricing page (/pricing/ returns 404), so there is no entry price point to state in any currency. The REST API is likewise free, but for personal and non-commercial use only; commercial use of the API requires a prior agreement obtained by email, and no rate for it is published. Since no paid offer exists, the notion of a free trial does not apply.
- full access to the web tool and to the REST API for personal
- non-commercial use
- with no account required
- available on request by email (jack@colormind.io)
- with no amount published
Data, GDPR & hosting
A consolidated view of how Colormind handles your data.
GDPR overview
There is no mention of the GDPR anywhere on Colormind. A search across the fourteen archived HTML files returns zero occurrences of GDPR, DPA or data protection. There is no privacy policy (/privacy/ returns 404), no Article 27 EU representative, no data protection officer, no postal address, no cookie banner and no cookie page. Two visible processing operations are nonetheless left entirely undocumented: the mailing-list sign-up form on the home page, which posts email addresses to Mailchimp (colormind.us14.list-manage.com), with no information notice and no consent checkbox, and the image upload page, which accepts user files without a word on how they are handled. Silence is not a claim of compliance: it simply means nothing about the GDPR can be verified here.
Who owns the data?
Colormind publishes no terms of service and no privacy policy: /terms/, /privacy/ and /legal/ all return 404, and a search across the whole archived HTML finds no occurrence of the words privacy, terms, legal, imprint or cookie. There is therefore no clause stating who owns the images you upload, the palettes the model returns, or anything else you put into the site, and no rule you could hold the publisher to. The only ownership statement anywhere on the site is the structured data on the home page, which names Jack Qiao as copyright holder of the site itself, dated 2017. Everything beyond that is simply undocumented.
Reuse rights
With no terms of service, the site sets no explicit license on the palettes you generate through the web interface: nothing published restricts what you do with the five hex codes you walk away with, and nothing formally grants it either. The one usage restriction Colormind actually publishes concerns the API: The API is free for personal and non-commercial use. If you're looking to use it in a commercial application, get in touch by email. Commercial integration therefore requires a prior agreement obtained from jack@colormind.io. Note also that the site's robots.txt carries a Content-Signal directive (search=yes, ai-train=no, use=reference) and blocks training crawlers such as Amazonbot, Applebot-Extended, Bytespider and CCBot, but that covers the site's own content, not your data.
Hosting summary
Colormind publishes no hosting information at all: no country, no region, no sub-processor list, no statement of any kind about where data sits. What can be observed is network evidence, and it should not be mistaken for a declaration by the provider. The domain resolves to 188.114.97.12, which belongs to AS13335 (Cloudflare, Inc.); that is an anycast address, seen from a San Francisco node, so it identifies a CDN point of presence and says nothing about where data is stored. The domain is registered with NameCheap, Inc. in the United States, and the registrant country published by whois is Iceland, which is Namecheap's privacy service rather than a real location. The only sub-processor that can be inferred from the HTML is Mailchimp: the mailing-list form posts to colormind.us14.list-manage.com, in the United States, and the site never declares it as such. In short, no hosting jurisdiction is declared, and none of the above amounts to a commitment.
Things to keep in mind
Risks and trade-offs to weigh before adopting Colormind.
- No privacy policy: images uploaded to the Image Upload page leave your machine with no information whatsoever on how long they are kept or what they are used for
- The Mailchimp mailing-list form on the home page collects email addresses with no information notice and no consent checkbox
- No terms of service: nothing contractually guarantees the availability of the service, nor your rights over the palettes it produces
- The documented API endpoint runs over plain, unencrypted HTTP: never send sensitive content through it
- The API license is limited to non-commercial use, so embedding it in a product without a prior agreement carries a real legal risk
- Creative dependency: systematically outsourcing the chromatic decision erodes your own grasp of color theory, and you gradually lose the ability to justify a choice
- Semi-random output and models that change daily: a palette obtained today may not be reproducible tomorrow, and none of them is checked against the contrast ratios a public website requires
Setup & Integrations
Technical difficulty
Two very different levels. For web use, difficulty is nil: no installation, no account, no configuration, just open the page and click. For API use, it is low: a JSON POST to http://colormind.io/api/, with curl and XMLHttpRequest examples supplied, no API key and no authentication to set up, well within reach of a beginner developer. The only thing to plan for on the integration side is the daily model reload at +8 UTC, which brings roughly 30 seconds of downtime, and a model list that changes from day to day and must be queried through the /list/ endpoint.
Deployment
Supported languages
Behind Colormind
Resources
All the official URLs gathered for verification and reference.
Alternatives
Tools that compete with or complement Colormind.
Frequently asked questions
Is Colormind free?
What powers the generation?
Can I impose my own colors?
Can I extract a palette from a photograph?
Is there an API?
Can the API be used in a commercial product?
Which models are available?
Is my data protected?
Is there a mobile app?
Who publishes Colormind?
Should you pick Colormind?
Colormind does one thing, and does it well. It is a single-purpose, frictionless, entirely free generator, and its real value is not the neural network itself but what surrounds it: the ability to see a palette immediately on a genuine interface, a Bootstrap landing page or a dashboard template, instead of an abstract strip of swatches. The daily rotation of themed models, drawn from films, photographs, video games and art, keeps the inspiration from going stale, and the image upload page turns a reference picture into a workable scheme in a couple of clicks. The structural weakness is just as clear. Nothing here is contractual: no terms of service, no privacy policy, no account, no saved palettes, no history. You take what the generator gives you and copy the hex codes down yourself. The REST API is genuinely useful and properly documented, but its license stops at personal and non-commercial use, and it is documented over plain HTTP rather than HTTPS. There is no accessibility check, no export format, no mobile app and no integration, and support is one personal email address. Read that as a positioning rather than a list of failures. Colormind has been online since January 2017 and is still in service, maintained as a personal project by its author, who says himself that it is not perfect and does require some human discretion. Treat it as what he calls it, an inspiration tool, and it earns its place in a designer's bookmarks. Expect it to run a brand's color system, guarantee contrast ratios or carry a company's legal obligations, and it will disappoint, because it never claimed to do any of that.
- Choosing a selection results in a full page refresh.
- Opens in a new window.