Color

#397f6c

#397f6c
hex#397f6c
rgbrgb(57, 127, 108)
hslhsl(164, 38%, 36%)
oklchoklch(0.546 0.077 173.1)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.1713

Colors that go with #397f6c

Charcoal, Rust and Medium Violet Red 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 →

#7f394c

#397f49 · #396e7f

#6c397f · #7f6c39

Split-complementary

Open in tool →

#7f396e · #7f4939

#49397f · #7f394c · #6e7f39

Contrast

#397f6c as textRatioAAAA largeAAAFix
Aaon white
4.74:1passpassfail
  • AAA: use #2b5f51 as the text (7.35:1)
Aaon black
4.43:1failpassfail
  • AA: use #3a826f as the text (4.6:1)
  • AAA: use #4aa58d as the text (7.06:1)
  • AA: or shift the background to #fafafa (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 #397f6c 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 #397f6c
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 #397f6c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397f6c-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