Color

#31776f

#31776f
hex#31776f
rgbrgb(49, 119, 111)
hslhsl(173, 42%, 33%)
oklchoklch(0.522 0.071 185.1)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1499

Colors that go with #31776f

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 #31776f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#773139

#31774c · #315c77

#6f3177 · #776f31

Split-complementary

Open in tool →

#77315c · #774c31

#4c3177 · #773139 · #5c7731

Contrast

#31776f as textRatioAAAA largeAAAFix
Aaon white
5.25:1passpassfail
  • AAA: use #28625b as the text (7.03:1)
Aaon black
4:1failpassfail
  • AA: use #358279 as the text (4.62:1)
  • AAA: use #44a79b as the text (7.25:1)
  • AA: or shift the background to #f0f0f0 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31776f as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #31776f
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 #31776f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31776f-a2bebe-d459a3-1f292d-e9f1ec?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