Color

#397f56

#397f56
hex#397f56
rgbrgb(57, 127, 86)
hslhsl(145, 38%, 36%)
oklchoklch(0.54 0.096 155.5)
Closest name: Amazon (#387b54)Relative luminance 0.1672

Colors that go with #397f56

Charcoal, Royal Blue 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 →

#7f3962

#3f7f39 · #397f79

#56397f · #7f5639

Split-complementary

Open in tool →

#79397f · #7f393f

#393f7f · #7f3962 · #7f7939

Contrast

#397f56 as textRatioAAAA largeAAAFix
Aaon white
4.83:1passpassfail
  • AAA: use #2c6343 as the text (7.06:1)
Aaon black
4.34:1failpassfail
  • AA: use #3a8258 as the text (4.51:1)
  • AAA: use #4ca973 as the text (7.23:1)
  • AA: or shift the background to #f7f7f7 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397f56 as the background.

Brands using this color

mcpConnect your agent — build around #397f56
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 #397f56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397f56-a2beb1-cc59d4-1f2d2b-eaf1e9?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