Color

#334561

#334561
hex#334561
rgbrgb(51, 69, 97)
hslhsl(217, 31%, 29%)
oklchoklch(0.388 0.053 259)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0582

Colors that go with #334561

Sea Green, Teal 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 →

#614f33

#335c61 · #383361

#613345 · #456133

Split-complementary

Open in tool →

#613833 · #5c6133

#61335c · #614f33 · #336138

Contrast

#334561 as textRatioAAAA largeAAAFix
Aaon white
9.7:1passpasspassPasses AAA — no fix needed.
Aaon black
2.16:1failfailfail
  • AA: use #5876a7 as the text (4.56:1)
  • AAA: use #8097bc as the text (7.07:1)
  • AA: or shift the background to #b3b3b3 (4.63:1)
  • AAA: or shift the background to #dbdbdb (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 #334561 as the background.

Brands using this color

Fonts for this mood

#334561 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #334561
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 #334561 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/334561-9ca7c4-df624e-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