Color

#223f49

#223f49
hex#223f49
rgbrgb(34, 63, 73)
hslhsl(195, 36%, 21%)
oklchoklch(0.349 0.039 222.2)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0438

Colors that go with #223f49

Dark Olive Green, 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 →

#492c22

#22493f · #222c49

#49223f · #3f4922

Split-complementary

Open in tool →

#49222c · #493f22

#3f2249 · #492c22 · #2c4922

Contrast

#223f49 as textRatioAAAA largeAAAFix
Aaon white
11.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #457e92 as the text (4.65:1)
  • AAA: use #5f9fb4 as the text (7.1:1)
  • AA: or shift the background to #a6a6a6 (4.6:1)
  • AAA: or shift the background to #cfcfcf (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #223f49 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#223f49 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #223f49
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 #223f49 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/223f49-9cb5c4-df4e70-1f242d-e9f1ef?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