COLOR
#223239
≈ Petrol Slumber
Values · copy any
On white
Aa
13.26:1
Passes AAA
On black
Aa
1.32:1
Fails AA
Best text on this color
Aa#FFFFFF(13.26:1)
Adjust & explore
drag the picker or wheel — values & harmonies update livePicker · drag to explore
Harmonies · live
Colour-blindness preview
Normal vision#223239
Protanopia#2E3139
Deuteranopia#2B2F39
Tritanopia#1A3434
Tints & shades
Color harmonies
Open in scheme generator →Palettes with this color
Colors that go with Petrol Slumber
Petrol Slumber 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
Colour namePetrol Slumber#243640ΔE 2.0CSS nameDarkslategray#2F4F4FΔE 11.6Web-safe#333333#333333ΔE 7.8
Pantone & RAL matches are coming soon — those libraries aren't openly licensed for redistribution.
Petrol Slumber — meaning & where to use it
Petrol Slumber 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.
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This exact shade isn't a named or standard-set colour, so it isn't indexed — but every tool above works.