Color

#05091f

#05091f
hex#05091f
rgbrgb(5, 9, 31)
hslhsl(231, 72%, 7%)
oklchoklch(0.151 0.047 270.2)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0033

Colors that go with #05091f

Charcoal, Steel Blue and Dark Olive Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #05091f

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#1f1b05

#05161f · #0e051f

#1f0509 · #091f05

Split-complementary

Open in tool →

#1f0e05 · #161f05

#1f0516 · #1f1b05 · #051f0e

Contrast

#05091f as textRatioAAAA largeAAAFix
Aaon white
19.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.07:1failfailfail
  • AA: use #5469e3 as the text (4.51:1)
  • AAA: use #8090ea as the text (7.1:1)
  • AA: or shift the background to #7a7a7a (4.59:1)
  • AAA: or shift the background to #9c9c9c (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #05091f as the background.

Brands using this color

Fonts for this mood

#05091f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #05091f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #05091f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/05091f-9c9ec4-df834e-231f2d-e9eef1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md