Color

#2b7778

#2b7778
hex#2b7778
rgbrgb(43, 119, 120)
hslhsl(181, 47%, 32%)
oklchoklch(0.524 0.073 196.4)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1506

Colors that go with #2b7778

Charcoal, Crimson and Amber 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.

Real palettes that use #2b7778

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#782d2b

#2b7853 · #2b5078

#782b77 · #77782b

Split-complementary

Open in tool →

#782b50 · #78532b

#532b78 · #782d2b · #50782b

Contrast

#2b7778 as textRatioAAAA largeAAAFix
Aaon white
5.23:1passpassfail
  • AAA: use #236061 as the text (7.2:1)
Aaon black
4.01:1failpassfail
  • AA: use #2f8283 as the text (4.64:1)
  • AAA: use #3da7a9 as the text (7.3:1)
  • AA: or shift the background to #f0f0f0 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b7778 as the background.

Brands using this color

Fonts for this mood

#2b7778 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b7778
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 #2b7778 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b7778-a2babe-d45992-1f272d-e9f1ed?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