Color

#377677

#377677
hex#377677
rgbrgb(55, 118, 119)
hslhsl(181, 37%, 34%)
oklchoklch(0.525 0.065 196.8)
Closest name: Green Sleeves (#39766c)Relative luminance 0.151

Colors that go with #377677

Charcoal, Firebrick and Champagne 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 #377677

Tints & shades

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

Harmonies

Complementary

Open in tool →

#773837

#377758 · #375677

#773776 · #767737

Split-complementary

Open in tool →

#773756 · #775837

#583777 · #773837 · #567737

Contrast

#377677 as textRatioAAAA largeAAAFix
Aaon white
5.22:1passpassfail
  • AAA: use #2d6162 as the text (7.01:1)
Aaon black
4.02:1failpassfail
  • AA: use #3b8081 as the text (4.59:1)
  • AAA: use #4ca3a4 as the text (7.08:1)
  • AA: or shift the background to #f0f0f0 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #377677 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

#377677 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #377677
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 #377677 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/377677-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