Galaxies · Galaxy group or cluster
A massive galaxy cluster whose gravity magnifies galaxies far behind it. Explore its views, where their colours came from, and palettes you can use.
Featured palette: Webb’s First Deep Field, 2022 (Sampled from this image)
#302C2C#131414#1E1D1E#332E2F#574C4C#8D7D78
Credit: NASA, ESA, CSA, and STScI. · released 12 July 2022
About SMACS 0723
A massive galaxy cluster whose gravity magnifies galaxies far behind it.
| Classification | Galaxy group or cluster |
|---|---|
| Observed light (this view) | 900 nm (shown as blue), 1.5 μm (shown as blue), 2.0 μm (shown as green), 2.77 μm (shown as green), 3.56 μm (shown as orange), 4.44 μm (shown as red) |
Why these colours?
Webb’s First Deep Field, 2022
Near-infrared light; colours assigned by the Webb team. Filters listed by the publisher: 900 nm (shown as blue) (900 nm), 1.5 μm (shown as blue) (1.5 µm), 2.0 μm (shown as green) (2 µm), 2.77 μm (shown as green) (2.77 µm), 3.56 μm (shown as orange) (3.56 µm), 4.44 μm (shown as red) (4.44 µm).
From: Webb’s First Deep Field, 2022 Mapped non-visible data
Colour clusters describe pixels in an image; they cannot identify a mineral, a gas or a physical temperature. Shares of pixels describe the sampled region of the image, not the object’s surface.
Colours from selected views
Palettes sampled from identified images and regions, or calculated from a documented model. These values describe each image or model, not one permanent colour of SMACS 0723.
Webb’s First Deep Field, 2022
Sampled from this image · Webb’s First Deep Field, 2022
#302C2CRGB 48, 44, 44region average#131414RGB 19, 20, 2057% of the region#1E1D1ERGB 30, 29, 3026% of the region#332E2FRGB 51, 46, 479% of the region#574C4CRGB 87, 76, 764% of the region#8D7D78RGB 141, 125, 1202% of the region
See where these colours came from
Creative palettes inspired by SMACS 0723
A design derived from the selected representation. It is not a scientific colour measurement. Each colour keeps the sampled colour it was made from.
Inspired by SMACS 0723
Inspired by this object
#2D2E2ERGB 45, 46, 46from #131414#585758RGB 88, 87, 88from #1E1D1E#898384RGB 137, 131, 132from #332E2F#BEB1B1RGB 190, 177, 177from #574C4C#F5E3DERGB 245, 227, 222from #8D7D78
Colours of the first view of SMACS 0723 with their lightness spread evenly, for a design palette.
Explore the views
Pick a colour from the image. Click or tap the picture to read a colour. Picked colours are yours, not catalogue samples.
No supported 3D model is available for this view. You can still inspect the source imagery and palette.
Use these colours
Every palette above opens in the palette generator. With JavaScript you can also add colours to your cosmic palette, save them, make a gradient or pattern, preview them in a design or a room (you choose which colour goes on which surface), check digital accessibility and export them. Each colour keeps the view and sample it came from.
Paint matches compare digital swatches for design inspiration. They are not physical equivalents of light from space. Edits create a new design palette. The original representation remains unchanged.
Sources
- Galaxies — NASA
- Webb’s First Deep Field (NIRCam Image) — ESA/Webb
Image credits
- Webb’s First Deep Field, 2022: NASA, ESA, CSA, and STScI. CC BY 4.0. Resized for the web from the publisher’s file (sha256 72013769a15bff446c7bcbae7f60119bf16edb1ba9debb4bfa973f64eee87188).
Images were resized once for the web; colours were measured from the published files (k-means in OKLab, pcke-oklab-kmeans-1); calculated colours use the CIE 1931 2° observer. Facts last reviewed 25 October 2026. Catalogue pcke-cosmos-2026-10-25, page revision f659dcc906f9. No ESA, ESO or NASA endorsement is implied.