Color

#223b59

#223b59
hex#223b59
rgbrgb(34, 59, 89)
hslhsl(213, 45%, 24%)
oklchoklch(0.347 0.061 253.9)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0419

Colors that go with #223b59

Dark Olive Green, Sea Green 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 →

#594022

#225659 · #242259

#59223a · #3a5922

Split-complementary

Open in tool →

#592422 · #565922

#592256 · #594022 · #225924

Contrast

#223b59 as textRatioAAAA largeAAAFix
Aaon white
11.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.84:1failfailfail
  • AA: use #4577b5 as the text (4.56:1)
  • AAA: use #729aca as the text (7.19:1)
  • AA: or shift the background to #a3a3a3 (4.53:1)
  • AAA: or shift the background to #cccccc (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #223b59 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

#223b59 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #223b59
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 #223b59 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/223b59-9ca9c4-df584e-1f202d-e9f0f1?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