COLOR
#031F29
≈ Black Box
Values · copy any
On white
Aa
17.05:1
Passes AAA
On black
Aa
1.03:1
Fails AA
Best text on this color
Aa#FFFFFF(17.05:1)
Adjust & explore
drag the picker or wheel — values & harmonies update livePicker · drag to explore
Harmonies · live
Colour-blindness preview
Normal vision#031F29
Protanopia#191E2A
Deuteranopia#141A29
Tritanopia#002222
Tints & shades
Color harmonies
Open in scheme generator →Colors that go with Black Box
Black Box sits in the teal family. Pair it with coral, warm sand or a soft blush to warm up its coolness, or lean into its harmonies below for a ready-made scheme.
Closest named, CSS & systems
Pantone & RAL matches are coming soon — those libraries aren't openly licensed for redistribution.
Black Box — meaning & where to use it
Black Box is a deep, shadowy teal — it reads as cool, clean and modern. It's a natural fit for tech, healthcare and coastal, spa-like brands. To keep it balanced, pair it with coral, warm sand or a soft blush to warm up its coolness.
Share image
Download image1200×1500 — sized for Pinterest, Instagram & social sharing. Free to download and use.
This exact shade isn't a named or standard-set colour, so it isn't indexed — but every tool above works.