rose colour1
/ˈrəʊz ˌkʌlə/(US rose color)
noun
1The colour of a rose, especially a pink or light crimson tint or hue.
2 Figurative. In earlier use: something that offers the prospect of ease, success, comfort, pleasure, etc. Hence: a naively optimistic or idealistic outlook or perspective.
Origin
Late Middle English; earliest use found in The Wycliffite Bible (early version). From rose + colour.
rose-colour2
/ˈrəʊzˌkʌlə/(US rose-color) rare
verb
[with object] To make rose-coloured; (figurative ) to cause to appear pleasant or attractive.
Origin
Mid 16th century; earliest use found in John Olde (d. 1557), translator and religious controversialist. From rose + colour.