NOTE: The below Blu-ray and 4K UHD captures were taken directly from the respective discs.

ADDITION: Criterion 4K UHD (February 2023): Criterion's have released Krzysztof Kieslowski's "Three Colors: Blue, White, Red" to 4K UHD. Included is Criterion's 2011 Blu-ray.

The 2160 image is darker with some added depth in the colors compared to the past digital editions. The film has sapphire filters or lighting (pool, chandelier's beads etc.), yellow (outdoors) and warm tones - short segments of bold red or white - that contrast the darker image helping highlight the film's consistently rich textures. It looks wonderful on my system - an easily identifiable upgrade. Beautiful. 

It is likely that the monitor you are seeing this review is not an HDR-compatible display (High Dynamic Range) or Dolby Vision, where each pixel can be assigned with a wider and notably granular range of color and light. Our capture software if simulating the HDR (in a uniform manner) for standard monitors. This should make it easier for us to review more 4K UHD titles in the future and give you a decent idea of its attributes on your system. So our captures may not support the exact same colors (coolness of skin tones, brighter or darker hues etc.) as the 4K system at your home. But the framing, detail, grain texture support etc. are, generally, not effected by this simulation representation.

There are no extras on the 4K UHD disc - just the film in 2160. However, included is a second disc Blu-ray, an exact duplicate or Criterion's 2011 1080P release, as evidenced by the M2TS files:

It has all the same extras as the 2011 edition - quoting our past review; "Criterion have stacked the deck on the Blu-ray of Kieslowski's Blue. We are privy to a video essay by film studies professor Annette Insdorf entitled 'On Blue' running over 20-minutes in 1080P where she expands on previously heard ideas on the meanings within the film relating details of the director's life. There is a Cinema Lesson with director Krzysztof Kieślowski from 1994 for about 7.5 minutes in 1080i where he discusses a scene from Blue, and specifically his idea behind a close-up shot of a saturating sugar cube. There is another new video interview - this time with Three Colors composer Zbigniew Preisner running 21-minutes in Polish with English subtitles as he discusses his method of creation and specifics on the film's soundtrack. Recorded in 2004 is a selected-scene commentary featuring actor Juliette Binoche lasting almost 25-minutes (in 1080i.) “Reflections on Blue" (17:27 in 1080i) and Kieślowski: The Early Years (14:59 in 1080i) are interview programs featuring film critic Geoff Andrew, Binoche, filmmaker Agnieszka Holland, cinematographer Sławomir Idziak, Insdorf, actor Irène Jacob, and editor Jacques Witta. They reflect on the production aspects of Blue and the questions posed by Kieslowski's work as well as examining his formative years and the political and social circumstances that shaped his direction and philosophical choices in cinema. We get two student shorts - both in 1080P - The Tram (1966 - 5:33 in 1080P), by Kieślowski, and The Face (1966 - 6:05 in 1080P), a short actually starring Kieślowski. They are prefaced with this notation: "While a film student in Loth, Krzysztof Kieglowski made the 1966 silent short The Tram, about a flirtatious boy and a pretty girl. That same year, he portrayed a tortured artist in his classmate Piotr Studzinski's short The Face. Both films are presented here courtesy of the Polish National Film, Television, and Theatre School in Loth." Lastly, is an original theatrical trailer in 1080P and the package contains a booklet featuring essays by film critics Colin MacCabe, Nick James, Stuart Klawans, and Georgina Evans; an excerpt from Kieślowski on Kieślowski; and reprinted interviews with cinematographers Idziak, Edward Klosinski, and Piotr Sobocinski."

Three Colors: Blue is about as 'pure genius' as cinema gets for me. I don't know how to say this in a 'politically correct' way, but 99% of most all films made after this are just inferior garbage by comparison.