What Color Is My Hoodie?
Grey? Blue? Purple? It can look different, depending on the context. Let's talk about color perception, color temperature, and the history of laundry.
Atmospheric opacity image from ESA/Hubble (F. Granato): www.eso.org/public/images/atm_opacity/ - image licensed under CC by 4.0 - creativecommons.org/licenses/by/4.0/
The optical illusion is original, but based on the work of David Novick: twitter.com/novickprof/status/1139342022551191553
More on Illuminant D65: en.wikipedia.org/wiki/Illuminant_D65 - the references in this article go into the full technical detail
I'm at tomscott.com
on Twitter at twitter.com/tomscott
on Facebook at facebook.com/tomscott
and on Instagram as tomscottgo

  • Tom Scott
    Tom Scott

    Please contain all your "color" vs "colour" comments in this thread. Good luck.

    • My Name
      My Name


    • Sentrosity

      Color is American English and colour is British English

    • Wintry PvP
      Wintry PvP


    • Ichi.


    • INKY


  • Zac's Football Skillz
    Zac's Football Skillz

    Light blue

  • ChloZenTime

    I like how all of this started from the simple question, "What color is my hoodie"

  • N krpt kr
    N krpt kr


  • Jonathan Poirier
    Jonathan Poirier

    hmm, yes yes... I'll pretend to see the difference with my colorblind eyes :D

  • A New Good Name
    A New Good Name

    Me who’s wears glasses that blocks out certain colors

  • Bokaj Llensch
    Bokaj Llensch

    Thats why in TV studios the cameras get calibrated with the help of a "benchmark" grey card and a oscilloscope to precisly read out the values.

  • Wolfyjaw Potato
    Wolfyjaw Potato


  • Kathryn A
    Kathryn A

    Oh gosh that glitching between "color temperature" and "colour temperature" set off my fight-or-flight response 😅

  • K B
    K B

    Light blue

  • Billy Fox
    Billy Fox

    Was anyone else expecting something about that dress mystery where people saw it as blue or gold?

  • Robin Tanner
    Robin Tanner

    Why does this remind me of that one CptD video?

  • Alvin Darby
    Alvin Darby

    Funny cuz I use color temperature in my art, I use bluish or cool colors for usually dark shaded areas while I use yellowish or warm colors for light areas

  • Astron Baits
    Astron Baits


  • Stealthlock

    0:45 “We need to talk about how color perception works And also about the *history of laundry.”* Me, audibly: “OHHHH GOSH”

  • Javabasily

    I'm getting the blue or gold dress vibes

  • theGyyrd

    2:54 Seems as though there was an After Effects war XD. Kidding, got a good chuckle out of that though

  • Bruh

    Your slowly turning into Vsause Lmao

  • Obersturmbann

    Tom makes the type of videos that nobody asked for but everybody needed

  • 12shzarmai 55
    12shzarmai 55

    Nice video and Hoodie gang boi :)

  • Duckles

    Since the reply feature isn't working right now, I'll post a reply to Tom's post this way: you may think, it's a pointless debate, as regional spellings are fine when they can be understood no matter which one you use, but i'd argue it's not pointless, because it is a harmless, enjoyable activity for linguistic prescriptivists, and that is an inherently good thing (providing happiness to people) In conclusion, Heck you if you say Color, it's Colour!!!

  • Raging_Azzhole

    well by the thumbnail alone, id say your hoodie is thinking with portals.

  • Time

    the only reason i type color instead if colour is because u.. im lazy af and cba to type u

  • Kevin The Rad Cat
    Kevin The Rad Cat

    According to the thumbnail, your hoodie is 'Reverse-French-Flag' colored

  • Monkey man
    Monkey man

    How old are you

  • Joab Pelling
    Joab Pelling

    2:57 was that to appeal to both brits and Americans

  • Skill28oy

    Tom: "what color is my hoodie?" Hoodie company: gray Us: gray Camera: orange The same camera: blue Calibrated color sensor: purple

  • Feenickz5

    I think I saw something about this on a tv show a few years ago, It showed two colors separated from each other, but when they were put together, they were actually shown to be the same exact color

  • Elctric

    0:51: Me still at school:

  • King Maxwell
    King Maxwell

    ok so i’m not crazy the lights due change at night

  • Marusik


  • DirtyCameraRailfan

    Barely anyone though noticed that Tom spoke in the same voice while the train was passing instead of stopping or voicing it in editing.

  • leo

    From red shirt to grey hoodie

  • Big Iron
    Big Iron


  • Big Iron
    Big Iron


  • Big Iron
    Big Iron


  • FalconTM

    It looks like grayish White

  • TanksAlot


  • civ27

    Going by those trains, you're not in the countryside at all, you're near Wimbledon in London

  • Jom


  • what dat
    what dat

    its rgb

  • Tharinda Basnayake
    Tharinda Basnayake

    Loved the colour/ clor flicker! Brilliant!

  • Manthan Mishra
    Manthan Mishra

    Colo(u)r temperature

  • Marta Rosiak
    Marta Rosiak

    I think it's like with weight in physics- it all depends on earth acceleration. Hwatever planet you are on- the weight is gonna be different

  • tim kohler
    tim kohler


  • Alex Exley
    Alex Exley

    I can't say color in the pinned comment, s u s

  • ?

    Light blue

  • Alexis Collado
    Alexis Collado

    I want that calibrated color sensor

  • ya boi
    ya boi

    "if im filming under a blank, grey sky, it can make the shot a bit dull" well its a good thing you dont live in the uk

  • Svartez

    why train

  • Designator

    So, according to that colour sensor... your hoodie isn't gray. Or at least not exclusively. According to the manifacturer of the paint that was referenced by the sensor's software, your hoodie is... "[a] deep purple [that] has a generous gray undertone suggestive of storm clouds on a distant horizon."

  • Akash

    I think li and ul are block element as ti takes all the width and prints in each rows

  • NoTraceOfSense

    Friendly reminder: Brown does not exist.

  • Scoutswell

    Red, it’s always red

  • Rebecca146

    I saw you in Regent's Park yesterday wearing this very hoodie! Love your videos

  • Big Chickenking
    Big Chickenking


  • Sexy Lemon
    Sexy Lemon

    seeing the slight red in amethyst sky: what the

  • eioshen boboi
    eioshen boboi

    The part about looking dirty is probably why Lego discontinued their original grey colors and replaced them with bluish-grey.

    • Christopher Dibbs
      Christopher Dibbs

      Gee, just copy someone else's comment.

  • Cinimod

    Rip colour blind ppl including me

  • Gamer

    The title isn't misleading will watch again

    • eioshen boboi
      eioshen boboi

      I can’t believe you colour hooligans

  • Eric Dubé
    Eric Dubé

    and another factor... I have f.lux on as well as blue light filtering glasses. "amethyst sky" looks brown.

  • Arcitek GD
    Arcitek GD

    i love watching toms videos in noiay environments because all his videos has subtitles

  • bocoy noiu
    bocoy noiu

    0:50 bold of u to assume i learnt anything from school

  • Stovve On the sun
    Stovve On the sun

    Thanks for using the right color/colour in the title

  • Ashfaaq

    The video edit and Tom's performance in this video is flawless!

    • bocoy noiu
      bocoy noiu

      Imagine staring out of your window on a train journey and seeing Tom just chilling with his cameraman on a hill with a grey hoodie.

  • Marc Edward
    Marc Edward

    Looks grey to me somethimes when i blink it goes to very very very very very very very very 0.0000000000000000000000001 blue

  • Michael Lynch
    Michael Lynch

    Tom, you’re the only person who can make “The History of Laundry” interesting. Bravo 👏

  • Abbie B
    Abbie B

    When you changed the lighting at 3:00 it turned pink, not yellow. Also, I would like a color calibrator like that. What is it called and how much are they? Google is being unhelpful.

    • Abbie B
      Abbie B

      @NT_23 I'll accept peach.

    • NT_23

      It's more of a peach colour. Definitely not pink

  • saturnday 1
    saturnday 1

    Forgot i had my blue light filter on.. 2:39 you have no idea tom

  • Merica Maverick
    Merica Maverick

    What I take from this video is that blue is scientifically the best color

  • Dylan Jones
    Dylan Jones

    This reminds me of an ongoing argument my uncle and I had over whether the house across the street from where we used to live was blue or gray. It was light blue. Every time I go back there, it's still the color I remember it. I don't care what my uncle says; it was blue.

  • Swifts


  • Sad boi Cube
    Sad boi Cube

    2:54 the word “colo(u)r” “glitching” between having and not having a u is great

  • Adrian Tarrant
    Adrian Tarrant

    I understand this more than the white and gold dress

  • devil's music
    devil's music

    I can’t believe you colour hooligans

  • Tino Müller
    Tino Müller

    im colour blind and you hoodie looks grey for me in every video

  • Guppy


  • Toothless

    I don't get it, why don't you just spell it 'colour'? Why do you keep switching?

  • CraftyCole09


  • Zayd Zulqurnain
    Zayd Zulqurnain

    Imagine staring out of your window on a train journey and seeing Tom just chilling with his cameraman on a hill with a grey hoodie.

  • conor young
    conor young


  • Andrew Leech
    Andrew Leech

    im colourblind

  • Jeph Luzentales
    Jeph Luzentales

    Plot twist Tom Scott doesn't have artificial light, he's actually just in Mexico

  • kevinwilliam0

    I don’t know, i’m colourblind.



  • Hammy Burgers
    Hammy Burgers

    Stop right there Mr Tom, the garment you're wearing is comfortable so there's no need to ask for others opinions regarding it. You do you. 😃

  • awesomefrankrapid

    Christ you look like Tony Blair

  • B D
    B D

    Grey. Now bye

  • Jo

    2:40 You say, "very, very yellow." I say, "very, very orange."

  • AJ SongCovers
    AJ SongCovers

    I dont even have to watch the video .... I can just tell by looking at the thumbnail .. its orange grey and blue ... easy .. Im sort of a genius myself

  • I


  • TheSupremePotato

    white/light grey/gray

  • Drag89X

    the thumbnail: whats the color of my hoodie? Me: Portal.

  • *-. Killua .-*
    *-. Killua .-*

    Hah. The answer is that the color is color.

  • Aleksander Ferdinand Willingdon
    Aleksander Ferdinand Willingdon

    ah yes a video about colour that my colourblind self understands

  • LA_gamer2009


  • pj48

    This video made my brain hurt.

  • DarthAlphaTheGreat

    radio waves, microwaves, infred RADiATIONNNNN! Visible light, ultra violet... X-RAYS, GAMMA RAYS!!! -EMR song.

  • Marvin Breitfeld
    Marvin Breitfeld

    are you the father from mumbojumbo

  • Ailsa Ni
    Ailsa Ni

    The part about looking dirty is probably why Lego discontinued their original grey colors and replaced them with bluish-grey.