Color

#223b5d

#223b5d
hex#223b5d
rgbrgb(34, 59, 93)
hslhsl(215, 46%, 25%)
oklchoklch(0.35 0.067 256.5)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0426

Colors that go with #223b5d

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 →

#5d4522

#22585d · #27225d

#5d223b · #3b5d22

Split-complementary

Open in tool →

#5d2722 · #585d22

#5d2258 · #5d4522 · #225d27

Contrast

#223b5d as textRatioAAAA largeAAAFix
Aaon white
11.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.85:1failfailfail
  • AA: use #4576ba as the text (4.55:1)
  • AAA: use #7297cb as the text (7:1)
  • AA: or shift the background to #a6a6a6 (4.66:1)
  • AAA: or shift the background to #cccccc (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #223b5d 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

#223b5d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #223b5d
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 #223b5d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/223b5d-9ca8c4-df5d4e-201f2d-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