Color

#000b2d

#000b2d
hex#000b2d
rgbrgb(0, 11, 45)
hslhsl(225, 100%, 9%)
oklchoklch(0.166 0.072 261.1)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0043

Colors that go with #000b2d

Blue Violet, Charcoal and Crimson 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2e2200

#00222e · #0b002e

#2e000b · #0b2e00

Split-complementary

Open in tool →

#2e0b00 · #222e00

#2e0022 · #2e2200 · #002e0b

Contrast

#000b2d as textRatioAAAA largeAAAFix
Aaon white
19.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.09:1failfailfail
  • AA: use #386aff as the text (4.67:1)
  • AAA: use #6b90ff as the text (7.06:1)
  • AA: or shift the background to #7a7a7a (4.51:1)
  • AAA: or shift the background to #9c9c9c (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #000b2d as the background.

Brands using this color

Fonts for this mood

#000b2d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #000b2d
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 #000b2d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/000b2d-9ca1c4-df754e-221f2d-e9eff1?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