Color

#2a4655

#2a4655
hex#2a4655
rgbrgb(42, 70, 85)
hslhsl(201, 34%, 25%)
oklchoklch(0.379 0.042 232.9)
Closest name: Charcoal (#36454f)Relative luminance 0.0553

Colors that go with #2a4655

Royal Blue, Teal and Sienna 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 →

#55392a

#2a554f · #2a3155

#552a46 · #46552a

Split-complementary

Open in tool →

#552a31 · #554f2a

#4f2a55 · #55392a · #31552a

Contrast

#2a4655 as textRatioAAAA largeAAAFix
Aaon white
9.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.11:1failfailfail
  • AA: use #4a7c96 as the text (4.61:1)
  • AAA: use #6c9db7 as the text (7.14:1)
  • AA: or shift the background to #b0b0b0 (4.6:1)
  • AAA: or shift the background to #d9d9d9 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a4655 as the background.

Brands using this color

Fonts for this mood

#2a4655 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a4655
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 #2a4655 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a4655-9cb1c4-df4e62-1f222d-e9f1f0?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