Color

#377b69

#377b69
hex#377b69
rgbrgb(55, 123, 105)
hslhsl(164, 38%, 35%)
oklchoklch(0.533 0.075 173.6)
Closest name: Green Sleeves (#39766c)Relative luminance 0.16

Colors that go with #377b69

Charcoal, Medium Violet Red 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 #377b69

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b3749

#377b47 · #376b7b

#69377b · #7b6937

Split-complementary

Open in tool →

#7b376b · #7b4737

#47377b · #7b3749 · #6b7b37

Contrast

#377b69 as textRatioAAAA largeAAAFix
Aaon white
5:1passpassfail
  • AAA: use #2b5f51 as the text (7.35:1)
Aaon black
4.2:1failpassfail
  • AA: use #3a826f as the text (4.6:1)
  • AAA: use #4aa58d as the text (7.06:1)
  • AA: or shift the background to #f5f5f5 (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 #377b69 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #377b69
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 #377b69 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/377b69-a2beba-d459b5-1f2b2d-e9f1eb?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