Color

#37816c

#37816c
hex#37816c
rgbrgb(55, 129, 108)
hslhsl(163, 40%, 36%)
oklchoklch(0.55 0.081 171.9)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.176

Colors that go with #37816c

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#81374c

#378147 · #377181

#6c3781 · #816c37

Split-complementary

Open in tool →

#813771 · #814737

#473781 · #81374c · #718137

Contrast

#37816c as textRatioAAAA largeAAAFix
Aaon white
4.65:1passpassfail
  • AAA: use #296051 as the text (7.28:1)
Aaon black
4.52:1passpassfail
  • AAA: use #48a88d as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37816c 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 #37816c
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 #37816c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37816c-a2beb9-d459b7-1f2b2d-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