Color

#2a4c55

#2a4c55
hex#2a4c55
rgbrgb(42, 76, 85)
hslhsl(193, 34%, 25%)
oklchoklch(0.395 0.042 216.7)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0632

Colors that go with #2a4c55

Steel 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 →

#55332a

#2a5549 · #2a3655

#552a4c · #4c552a

Split-complementary

Open in tool →

#552a36 · #55492a

#492a55 · #55332a · #36552a

Contrast

#2a4c55 as textRatioAAAA largeAAAFix
Aaon white
9.28:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #457d8c as the text (4.57:1)
  • AAA: use #62a0b2 as the text (7.19:1)
  • AA: or shift the background to #b5b5b5 (4.52:1)
  • AAA: or shift the background to #e0e0e0 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a4c55 as the background.

Brands using this color

Fonts for this mood

#2a4c55 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a4c55
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 #2a4c55 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a4c55-a2b5be-df4e75-1f242d-e9f1ef?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