midnight blue 
noun [mass noun]
A very dark blue.The color of the dress made her blue eyes seem darker, almost midnight blue....
- It was a black so dark that it shone midnight blue in places the light reached and it ended half way down his back.
- Colours focus on very pale naturals and mysterious darks such as midnight blue, espresso brown, black and dark purple.
- capital asset
- capital bonus
- capital budget
- capital budgeting
- capital city
- capital commitment
- capital consumption
- capital control
- capital cost
- capital deepening
- capital depreciation
- capital duty
- capitaled
- capital equipment
- capital expenditure
- capital flight
- capital flow
- capital formation
- capital funding
- capital gain
- capital gains tax
- capital gearing
- capital goods
- capital growth
- capitalhood