Color

#2a3f47

#2a3f47
hex#2a3f47
rgbrgb(42, 63, 71)
hslhsl(197, 26%, 22%)
oklchoklch(0.353 0.03 223.7)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.045

Colors that go with #2a3f47

Amber, Blue and Blush Pink 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 →

#47322a

#2a4740 · #2a3047

#472a3e · #3e472a

Split-complementary

Open in tool →

#472a30 · #47402a

#402a47 · #47322a · #30472a

Contrast

#2a3f47 as textRatioAAAA largeAAAFix
Aaon white
11.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.9:1failfailfail
  • AA: use #517a8a as the text (4.5:1)
  • AAA: use #759eae as the text (7.26:1)
  • AA: or shift the background to #a6a6a6 (4.54:1)
  • AAA: or shift the background to #cfcfcf (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a3f47 as the background.

Brands using this color

Fonts for this mood

#2a3f47 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a3f47
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 #2a3f47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a3f47-9cb4c4-df4e6b-1f232d-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