Color

#344b89

#344b89
hex#344b89
rgbrgb(52, 75, 137)
hslhsl(224, 45%, 37%)
oklchoklch(0.427 0.107 266.6)
Closest name: Assassin (#2d4f83)Relative luminance 0.0757

Colors that go with #344b89

Sea Green, Steel Blue and Blue 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 →

#897234

#347589 · #483489

#89344b · #4b8934

Split-complementary

Open in tool →

#894834 · #758934

#893475 · #897234 · #348948

Contrast

#344b89 as textRatioAAAA largeAAAFix
Aaon white
8.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #5974c0 as the text (4.68:1)
  • AAA: use #8196cf as the text (7.2:1)
  • AA: or shift the background to #bfbfbf (4.54:1)
  • AAA: or shift the background to #ebebeb (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #344b89 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

#344b89 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #344b89
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 #344b89 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/344b89-9ca2c4-df724e-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