Color

#0d4449

#0d4449
hex#0d4449
rgbrgb(13, 68, 73)
hslhsl(185, 70%, 17%)
oklchoklch(0.355 0.055 204.1)
Closest name: Cold and Dark (#154250)Relative luminance 0.047

Colors that go with #0d4449

Crimson, Steel Blue and Teal 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 →

#4a120d

#0d4a30 · #0d264a

#4a0d45 · #454a0d

Split-complementary

Open in tool →

#4a0d26 · #4a300d

#300d4a · #4a120d · #264a0d

Contrast

#0d4449 as textRatioAAAA largeAAAFix
Aaon white
10.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #18818b as the text (4.55:1)
  • AAA: use #1fa6b2 as the text (7.16:1)
  • AA: or shift the background to #a8a8a8 (4.55:1)
  • AAA: or shift the background to #d1d1d1 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d4449 as the background.

Brands using this color

Fonts for this mood

#0d4449 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d4449
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 #0d4449 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d4449-a2b8be-df4e88-1f262d-e9f1ee?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