The image stays with you
No upload, no queue, and no copy of your work sitting on a server. The file is read through a local URL and sampled on a canvas in your own browser, which is also why the result appears instantly.
COLOUR · EXTRACTED IN YOUR BROWSER
Colour palette extractor
Drop in an image and get its colours back: hex codes, how much of the picture each one holds, and whether black or white text will read on it. The file never leaves your browser.
FREE · NO ACCOUNT · NOTHING IS UPLOADED · UP TO 8 SWATCHES
Palette extractor
Everything below runs on your own machine. The image is read locally and sampled, and no request leaves this page.
Read locally and never uploaded. Nothing is stored, so reloading the page clears it.
WHY THIS ONE
Most extractors hand back six shades of the background
Counting the most common colours in a photograph returns the sky, four more pieces of sky, and the wall. The one colour you actually wanted is the small bright thing, and it is exactly what frequency counting averages away.
The accent survives
Colours are split by median cut at the widest gap rather than at the median pixel count, so a small saturated area holds its own box instead of dissolving into the ground behind it. That is usually the colour worth having.
You find out what reads
Every swatch carries the WCAG contrast ratio it gives black and white text. A palette you cannot put a caption on is a mood board, and knowing that before you design is cheaper than finding out after.
PAST THE PAGE
A palette is worth more across twenty images than in one.
One image with good colour is luck. The same colours named in every prompt in a set is a look — and it is the cheapest kind of consistency to buy, because it costs nothing but the words.
- Lift a palette from a reference, a photograph, or a frame of your own footage.
- Paste the same line into every prompt in the set — an image costs 12 credits, so a set of six is cheap to try twice.
- A free account starts with 200 one-time credits, which is enough to run a whole set and pick the survivors.
This page is free and needs no account. Generating images is a billed mode, priced above.
See how the Image Studio worksQUESTIONS
Palettes, answered
Is the palette extractor free?
Yes, and there is no account. The whole thing runs in your browser — no request is made and nothing is generated, so it costs us nothing to serve. Generating images from the palette afterwards is separate and billed.
Is my image uploaded anywhere?
No. The file is read through a local browser URL, drawn to an offscreen canvas and sampled there. It is never sent to us or to anyone else, nothing is stored, and closing the tab is all the cleanup there is.
How are the colours chosen?
By median cut. The pixels start in one box, the box is split repeatedly along whichever colour channel it spans most widely, and each final box contributes its average. Splitting at the widest gap rather than at the median pixel count is what keeps a small bright accent from being averaged into a large dull background.
How do I use a palette in a prompt?
Copy the prompt line and paste it into every prompt in a set, unchanged. Naming the same few colours each time is the cheapest way to make a group of generated images look like they belong together. Expect the colours to be honoured as a direction rather than matched to the hex code.
What do the contrast numbers mean?
They are WCAG contrast ratios, from 1:1 to 21:1, for black or white text on that swatch — whichever of the two reads better. As a working bar, small text wants at least 4.5:1 and large headings at least 3:1. A swatch below that is a background, not a place for words.
Should I take three, five or eight colours?
Five is the working size: a ground, two mids, a highlight and an accent. Three is for a strong graphic look with nowhere to hide, and 8 is for reading an image rather than designing from it — past five, most of the extra swatches are neighbours of ones you already have. You can switch between 3, 5, 8 without re-reading the file.
The studio behind this tool
One free account. Six studios.
Every free tool on this page is cut from PrismPoster itself — six studios that share one credit wallet, one library, and one timeline editor. Where the free tool stops, the studios keep going.
Omni Studio
Connect images, video, and music on one node canvas and build a piece across mediums without leaving the flow.
Image Studio
Generate pictures from prompts or references, then refine them in place with Magic Edit — remove objects, retouch, upscale.
Video Studio
Turn a prompt or a still image into a moving clip, in vertical or widescreen for wherever it ships.
Character Studio
Design a character once and reuse them consistently — the same face in new images, scenes, and clips.
Storyboard
Plan a video scene by scene, then send each shot to the studios to render.
Music Studio
Write full tracks with vocals or instrumentals for your videos and streams.
Start free
200 credits to start — one-time, no card
- New accounts start with a one-time grant of 200 credits, not a trial that expires.
- Video generation is included on the free plan, so your first render can be a real one.
- Everything you make lands in your library, ready for the timeline editor.
First-month offer
Unlock 20% off your first month
First-time subscribers unlock 20% off the first month of any monthly plan — a one-time personal window of 72 hours that opens when you first engage and never resets.
While your window is open, the discount is applied automatically at checkout — there is no code to enter.
Explore more
Prompt enhancer
Rewrite the rest of the prompt once the colours are decided.
Social media sizes
The dimensions each platform actually wants, before you render the set.
AI image editing guide
Recolouring, replacing and fixing an image you have already made.
Pricing
What generating from the palette costs, in credits and per month.
PALETTE IN HAND
You have the colours.Now use them twenty times.
Take the line into the Image Studio and run a set with it. The consistency shows up across the group, which is the only place it can.