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LETTER TO THE EDITOR
The Twentieth Century Reversal of Pink-Blue Gender Coding: A
Scientific Urban Legend?
Marco Del Giudice
Published online: 21 July 2012
? Springer Science+Business Media, LLC 2012
Inthescientificliteratureongender,itisusuallytakenforgranted
that a remarkable cultural shift took place in the United States
duringthefirsthalfofthetwentiethcentury.Inthespanofasingle
generation,gender-colorassociationsunderwentasuddenrever-
sal:pink—astereotypicallymasculinecoloruntilthe1920s—had
by the 1950s become associated with girls and femininity while
bluehadswitchedfromfemininetomasculine.Thediscoveryof
this‘‘pink-bluereversal’’(henceforthPBR)isusuallyattributedto
Paoletti(1987,1997,2012).Herearesometypicalscholarly
accountsofthePBR:
Paoletti…hasdocumentedthattheNorthAmericantradition
ofdressinginfantboysinblueandinfantgirlsinpinkbegan
inthe1920s.Priortothatdecade,Paoletti…notedthatthe
sex-dimorphiccolorcodingofpinkandbluewasinverted,i.e.,
infantboysweredressedinpinkandinfantgirlsweredressed
inblue.(Chiuetal.,2006,p.385)
Atonepoint,pinkwasconsideredmoreofaboy’scolor,asa
watered-down,bold,dramaticred,whichisafiercecolor.
Instead,bluewasconsideredmoreforgirls.(Frassanito&
Pettorini,2008,p.881)
Within-culturehistoricalchangesupportstheideaofsocial
constructionincolorpreferences.Forexample,thecurrent
stereotypicalAmericanassignmentofpinktogirlsandblue
toboyswasreversedacenturyago…(Cohen,2012,p.1).
Yet,inthefirsttwodecadesofthetwentiethcentury,thereis
evidencethatthegender-dimorphicnatureofthesetwocol-
ors wasinverted,that is,blue wasjudgedtobe stereotypi-
cally feminine whereas pink was judged to be stereotypi-
callymasculine.(Zucker,2005,p.377).
Foratime,pinkwaspreferredforboys….Blue…wasreserved
forgirls.Onlytowardthemiddleofthetwentiethcenturydid
existing practices become fixed. Yet so thoroughly have
thesepreferencesbecomeingrainedthatpsychologistsand
journalists now speculate on the genetic and evolutionary
originsofgenderedcolorpreferencesthatarelittlemorethan
50yearsold.(Fine,2010,p.208)
Onthefaceofit,theclaimbeingmadeisquiteextraordinary,espe-
ciallyifoneconsidersthestronginertiaofgender-relatednormsand
conventions.ThereadermaybesurprisedtolearnthatPaolettiher-
selfneverendorsedthePBRinherownarticlesandbooks.Rather,
shemadetheweakerclaimthatthegendercodingofpinkandblue
wasinconsistent—notreversed—atthebeginningofthetwentieth
century and that the current pink-blue convention only became
dominantinthe1950s(Paoletti,1987,1997,2012).
While extraordinary claims are said to require extraordinary
evidence,whatistrulyextraordinaryinthiscaseisthethinnessof
theevidencepresentedinsupportofthePBR.Anyculturalshiftof
thiskindisguaranteedtoleavemyriadunequivocaltracesinbooks,
periodicals, and other media. However, the non-anecdotal evi-
denceforthePBRconsistsentirelyofahandfulofexcerptsfrom
magazinearticles.Herearethefourexcerptssuggestingareversal,
or at least a substantial degree of inconsistency, in the gender
codingofpinkandblue(seePaoletti,1987,2012):
Purewhiteisusedforallbabies.Blueisforgirlsandpinkisfor
boys,whenacoloriswished.(Ladies’HomeJournal,1890)
Ifyoulikethecolornoteonthelittleone’sgarments,usepink
fortheboyandblueforthegirl,ifyouareafollowerofcon-
vention.(TheSundaySentinel,March29,1914)
Pinkorblue?Whichisintendedforboysandwhichforgirls?
Thisquestioncomesfromoneofourreadersthismonth,and
thediscussionmaybeofinteresttoothers.Therehasbeen
agreatdiversityofopiniononthissubject,butthegenerally
M. Del Giudice (&)
Biology of Social Behavior Laboratory, Department of
Psychology, University of Turin, Via Po 14, 10123 Turin, Italy
e-mail: marco.delgiudice@unito.it
123
Arch Sex Behav (2012) 41:1321–1323
DOI 10.1007/s10508-012-0002-z
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accepted rule is pinkfor the boyandblue for the girl.The
reasonisthatpinkbeingamoredecidedandstrongercolor,is
moresuitablefortheboy;whileblue,whichismoredelicate
anddaintyisprettierforthegirl.Inlateryearstheshadeof
pink has been much improved. Perhaps if we had had the
delicatefleshtintswhenbabylayetteswerefirstsold,therule
mighthavebeenreversed.Thenurseryrhymeof‘‘LittleBoy
Blue’’isresponsibleforthethoughtthatblueisforboys.Sta-
tioners,too,reversethecolors,butastheysellonlyannounce-
mentcardsandbabybooks,theycannotbeconsideredauthor-
ities.Ifacustomeristoofussyonthissubject,suggestthat
she blends the two colors, an effective andpretty custom
whichoriginatedontheotherside,andwhichafterallisthe
onlywayofgettingthelaughonthestork.(TheInfants’Depart-
ment,June,1918,p.161)
Fashions: Baby’s Clothes. The Idea: Pink for a boy. The
Motive: To distinguish him from a girl. The Story: In Bel-
gium,PrincessAstrid,consortoftheCrownPrince,gavebirth
afortnightagotoa7-lb.daughter.Saiddispatches:‘‘Thecra-
dle…hadbeenoptimisticallyoutfittedinpink,thecolorfor
boys,thatforagirlbeingblue.’’SaidmanyU.S.newspaper
readers:‘‘What!PinkforaBOY?Why,inourfamily,wehave
beenusingpinkforGIRLS,blueforboys.’’AcheckofU.S.
authorities (i.e., leading stores that sell baby equipment)
showed:[Best’s(Manhattan):BoysP,GirlsB;Macy’s(Man-
hattan):BoysB,GirlsP;FranklinSimon(Manhattan):Boys
B, Girls P; Halle’s (Cleveland): Boys P, Girls P; Marshall
Field’s(Chicago):BoysP,GirlsB;Bullock’s(LosAngeles):
BoysB,GirlsP;Filene’s(Boston):BoysP,GirlsB;Maison
Blanche (New Orleans): Boys P, Girls B; Wanamaker’s
(Philadelphia): Boys B, Girls P; The White House (San
Francisco):BoysP,GirlsB].Thereseems,then,tobenogreat
unanimityofU.S.opiniononPinkv.Blue.(TimeMagazine,
November14,1927)
WhiletheseexcerptsseemconsistentwiththePBR(and/orPao-
letti’s weaker claims), there is no way to tell how representative
theyareofthebroaderculturalnormsoftheirtime.Forexample,gen-
dercolor-codingwasexplicitlytargetedbyearlytwentiethcentury
feministwriters(seePaoletti,1987);someoftheseexcerptsmay
reflectdeliberateattemptstoweakenorsubvertexistingconven-
tions,ratherthantheexistenceofalternativeconventions.Inthe
firsttwoexcerpts,typographicalmistakescannotberuledoutasthe
sourceoftheapparent‘‘reversal.’’Otherpiecesofevidencethatare
sometimesdiscussedinthiscontextincludepicturesofgarments,
paperdolls,andsoforth(Paoletti,2012);however,suchanecdotal
evidenceisirrelevanttothevalidityofPBRaccounts,unlessitcan
bedemonstratedthatareversaloccurredatthelevelofculturalcon-
ventions.Despitetheflimsyevidenceinitssupport,thePBRseems
to have been uncritically accepted in the scientific literature—
indeed,IcouldnotfindasinglecriticalappraisalofthePBRinpeer-
reviewedjournals.
Clearly,itwouldbedesirabletoinvestigatethePBRusingsys-
tematicmethodsandamorecomprehensivesetofhistoricaldata.
Luckily,amassivedatabaseofwordoccurrencesinover5million
books publishedfrom 1800to2000 hasbeenrecentlycompiled
and made publicly available (Michel etal.,2011).The database
canbesearchedwithGoogleNgramviewer(http://books.google.
com/ngrams).Iperformedasearchofthefollowingeightphrases:
‘‘blueforboys,’’‘‘pinkforgirls,’’‘‘blueforgirls,’’‘‘pinkforboys,’’
‘‘blueforaboy,’’‘‘pinkforagirl,’’‘‘blueforagirl,’’and‘‘pinkfora
boy.’’Ichosethesephrasesbecausetheyunambiguouslyreferto
gender conventions (in contrast with semantically ambiguous
phrasessuchas‘‘girlinpink’’or‘‘boydressedinblue’’).Sincethe
pink-blue reversal supposedly took place in the United States, I
searchedtheAmericanEnglishcorpus(identifier:googlebooks-
eng-us-all-20090715) for books published between 1880 and
1980(fortechnicaldetails,seeMicheletal.,2011).
ThesearchresultsareshowninFig.1.Gender-codedreferences
topinkandbluebegintoappeararound1890andintensifyafter
WorldWarII.However,allthegender-colorassociationsfoundin
thedatabaseconformtothefamiliarconventionofpinkforgirls
andblueforboys.AnequivalentsearchoftheBritishEnglishcor-
pus (googlebooks-eng-gb-all-20090715) revealed exactly the
samepattern.Inotherwords,thismassivebookdatabasecontains
notraceoftheallegedpink-bluereversal;onthecontrary,the
resultsshowremarkableconsistencyingendercodingovertime
in both the U.S. and the UK, starting from the late nineteenth
centuryandcontinuingthroughoutthetwentiethcentury.
Ifoneconsidersthetotalityofevidence,themostparsimonious
conclusionisthatthePBRasusuallydescribedneverhappened,
and that the magazine excerpts cited in support of the PBR
areanomalousorunrepresentativeofthebroaderculturalcon-
text.Notonlydothepresentfindingsruncountertothestandard
PBRaccount;theyalsofailtosupportPaoletti’sclaimthatpink
and blue were inconsistently associated with gender until the
1950s.Theyare,however,consistentwiththenotionthatgender-
colorassociationsbecameprogressivelymoresalientacrossthe
twentiethcentury(Paoletti,2012).
Fig.1 Search results for gender-color associations in the American
English corpus, 1880–1980 (Google Ngram viewer, identifier: google-
books-eng-us-all-20090715). Frequency plots (smoothing=0) were
rescaled and superimposed on a single graph. The phrases ‘‘pink for
boys,’’‘‘pink for a boy,’’‘‘blue for girls,’’and‘‘blue for a girl’’were not
found in the corpus
1322 Arch Sex Behav (2012) 41:1321–1323
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Inconclusion,therearestrongreasonstodoubtthevalidityof
thestandardPBRaccount;ifanything,gender-colorassociations
seemtobemuchmorestablethancurrentlybelieved.Intriguingly,
the pink-blue convention may ultimately depend on innate per-
ceptualbiasestowarddifferentregionsofthecolorspectruminthe
two sexes (see Hurlbert & Ling, 2007). Starting from age 2 and
continuingthroughoutpreschool,girlsdisplayincreasingprefer-
enceforpinkwhileboysshowincreasingavoidanceofthesame
color(LoBue&DeLoache,2011).Inadditiontosociallearning,
these developmental trajectories may reflect the activation of
evolvedsexdifferencesincolorprocessing.Ofcourse,thePBRisa
big stumbling block for biological explanations of gender-color
associations;butfarfrombeinganestablishedfact,thePBRshows
manywarningsignsofascientificurbanlegend.Uncriticalaccep-
tance of the PBR may have hindered theoretical and empirical
progressinthisfascinatingareaofresearch.
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