Color

#2b4e50

#2b4e50
hex#2b4e50
rgbrgb(43, 78, 80)
hslhsl(183, 30%, 24%)
oklchoklch(0.398 0.041 200.4)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0654

Colors that go with #2b4e50

Teal, Rust 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 →

#502d2b

#2b503f · #2b3b50

#502b4e · #4e502b

Split-complementary

Open in tool →

#502b3b · #503f2b

#3f2b50 · #502d2b · #3b502b

Contrast

#2b4e50 as textRatioAAAA largeAAAFix
Aaon white
9.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #467e81 as the text (4.56:1)
  • AAA: use #59a2a6 as the text (7.14:1)
  • AA: or shift the background to #b8b8b8 (4.59:1)
  • AAA: or shift the background to #e3e3e3 (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 #2b4e50 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

#2b4e50 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b4e50
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 #2b4e50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b4e50-a2b9be-d4598e-1f262d-e9f1ee?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