Sky Blue is the usual color of the sky, especially during the clear daytime.

Colors
RedOrangeYellowGreenBluePurpleBlackWhitePinkBrownGray (Grey)
CyanMagentaIndigoVioletRoseGoldSilverBronze
FuchsiaBeigeAmberLimeLemonTanTealOliveKhakiSky BlueNavy
MaroonCrimsonVermillionScarletCoralSalmonPeachCreamLavenderLilacAquaTurquoiseEmeraldOchreSiennaUmber
Light GrayDark GrayBurgundyAuburnRubySepiaTaupeBananaSpring GreenMintJadeAquamarineAzureSapphireAmethystPlumNeonIvoryPlatinum
ApricotTangerineMarigoldWheatChartreuseMossKellyCeladonPeriwinkleCeruleanCobaltUltramarineBlueberryIrisGrapeThistleMauveOrchidStrawberryCeriseVanillaChocolateMahoganyChestnutEbonyCharcoalGunmetalKey
CoquelicotPersimmonSunburnPeruGoldenrodCitrineVitellaryDandelionPearMindaroGooSlime GreenSageAsparagusHarlequinErinMalachitePakistanVerdigrisViridianAlice BlueElectric BlueCapriCornflowerGlaucousVictoriaZaffreEggplantHeliotropePuceMulberryAmaranthSnowPearlXanaduFeldgrau
EigengrauVantablack