Color

#377774

#377774
hex#377774
rgbrgb(55, 119, 116)
hslhsl(177, 37%, 34%)
oklchoklch(0.527 0.066 191.3)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1527

Colors that go with #377774

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 #377774

Tints & shades

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

Harmonies

Complementary

Open in tool →

#77373a

#377753 · #375a77

#743777 · #777437

Split-complementary

Open in tool →

#77375a · #775337

#533777 · #77373a · #5a7737

Contrast

#377774 as textRatioAAAA largeAAAFix
Aaon white
5.18:1passpassfail
  • AAA: use #2b5e5c as the text (7.35:1)
Aaon black
4.05:1failpassfail
  • AA: use #3b817e as the text (4.63:1)
  • AAA: use #4ca4a0 as the text (7.13:1)
  • AA: or shift the background to #f0f0f0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #377774 as the background.

Brands using this color

mcpConnect your agent — build around #377774
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 #377774 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/377774-a2bcbe-d4599b-1f282d-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