Misty Blue continues Periwinkle toward a quieter sky tone. A pinpoint of Coral can mark an active chart value or tab without warming the whole system.
Periwinkle can fill a large panel without making it feel cold. On cotton it resembles a blue dye after several washes; on a glossy screen, the lavender note is easier to notice.
Periwinkle is bluer than lavender and quieter than cornflower. Placing those neighbors together makes its balanced blue-violet character easier to judge before choosing a broader palette.

Tints
#c3cde6
#c9d2e8
#cfd7eb
#d5dcee
#dbe1f0
#e1e6f2
#e7ebf5
#edf0f8
#f3f5fa
#f9fafc
#ffffff
Shades
#c3cde6
#b0b8cf
#9ca4b8
#8890a1
#757b8a
#626673
#4e525c
#3a3e45
#27292e
#141417
Triadic
#c3cde6
#c01243
#44c012
Monochromatic
#7f8596
#a0a8bd
#c3cde6
#ced6ea
#d8deef
Analogous
#129bc0
#c3cde6
#3712c0
Complementary
#c3cde6
#c08f12