blue

Summary

blue is a primary color^[1]. blue has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[2]

Key Facts

• blue's instance of is recorded as primary color^[3].
• blue's instance of is recorded as HTML4 named color^[4].
• blue's instance of is recorded as spectral color^[5].
• blue's instance of is recorded as web color^[6].
• blue followed green^[7].
• blue was followed by indigo^[8].
• blue is a type of light^[9].
• blue is a type of green-blue^[10].
• blue is part of seven prismatic colors^[11].
• blue is part of RGB color space^[12].
• blue is part of color^[13].
• blue's Commons category is recorded as Blue^[14].
• blue's sRGB color hex triplet is recorded as 0000FF^[15].
• blue's topic's main category is recorded as Category:Blue^[16].
• blue's Commons gallery is recorded as Blue^[17].
• blue's OpenStreetMap tag is recorded as colour=blue^[18].
• blue's described by source is recorded as Explanatory Dictionary of the Living Great Russian Language^[19].
• blue's described by source is recorded as Meyers Konversations-Lexikon, 4th edition (1885–1890)^[20].
• blue's described by source is recorded as Encyclopædia Britannica 11th edition^[21].
• blue's different from is recorded as Ble^[22].
• blue's frequency is recorded as {'unit': 'Q39369', 'amount': '+666000000000000'}^[23].
• blue's wavelength is recorded as {'unit': 'Q178674', 'amount': '+477.5'}^[24].
• blue's permanent duplicated item is recorded as Q25930042^[25].
• blue's permanent duplicated item is recorded as blue^[26].
• blue's on focus list of Wikimedia project is recorded as Wikipedia:Vital articles/Level/4^[27].

Body

Context

Part of include seven prismatic colors^[11]; RGB color space^[12]; and color^[13], a physical property^[28]. Recorded instance of include primary color^[3], HTML4 named color^[4], spectral color^[5], and web color^[6]. blue followed green^[7]. blue was followed by indigo^[8].

Outcome and Impact

Things named for blue include azurite^[29], a mineral species^[30]; lazurite^[31], a mineral species^[32]; R-29RMU Sineva^[33], a missile model^[34]; Blausee^[35], a lake^[36], in Switzerland^[37]; Aoandon^[38], a yōkai^[39]; Blauer Enzian^[40], a named passenger train service^[41], in Germany^[42], founded in 1951^[43]; Lac Bleu^[44], a lake^[45], in Italy^[46]; and blue-collar worker^[47].

Why It Matters

blue has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[2] blue is known by 43 alternative names across languages and contexts.^[48]

Entities named for blue include azurite^[29], a mineral species^[30]; lazurite^[31], a mineral species^[32]; R-29RMU Sineva^[33], a missile model^[34]; Blausee^[35], a lake^[36], in Switzerland^[37]; Aoandon^[38], a yōkai^[39]; and Blauer Enzian^[40], a named passenger train service^[41], in Germany^[42], founded in 1951^[43].