Color

#3b4e4a

#3b4e4a
hex#3b4e4a
rgbrgb(59, 78, 74)
hslhsl(167, 14%, 27%)
oklchoklch(0.407 0.025 180.7)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0687

Colors that go with #3b4e4a

Blue, Blush Pink and Cadet 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 →

#4e3b3f

#3b4e41 · #3b494e

#4a3b4e · #4e4a3b

Split-complementary

Open in tool →

#4e3b49 · #4e413b

#413b4e · #4e3b3f · #494e3b

Contrast

#3b4e4a as textRatioAAAA largeAAAFix
Aaon white
8.84:1passpasspassPasses AAA — no fix needed.
Aaon black
2.37:1failfailfail
  • AA: use #5e7d76 as the text (4.67:1)
  • AAA: use #7c9c95 as the text (7.05:1)
  • AA: or shift the background to #bababa (4.56:1)
  • AAA: or shift the background to #e6e6e6 (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 #3b4e4a 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

#3b4e4a reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b4e4a
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 #3b4e4a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b4e4a-a2bebb-d459af-1f2a2d-e9f1ec?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