Color

#397957

#397957
hex#397957
rgbrgb(57, 121, 87)
hslhsl(148, 36%, 35%)
oklchoklch(0.524 0.086 158.2)
Closest name: Amazon (#387b54)Relative luminance 0.1523

Colors that go with #397957

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 →

#79395b

#3b7939 · #397977

#573979 · #795739

Split-complementary

Open in tool →

#773979 · #79393b

#393b79 · #79395b · #797739

Contrast

#397957 as textRatioAAAA largeAAAFix
Aaon white
5.19:1passpassfail
  • AAA: use #2e6146 as the text (7.21:1)
Aaon black
4.05:1failpassfail
  • AA: use #3e845f as the text (4.67:1)
  • AAA: use #4ea677 as the text (7.04:1)
  • AA: or shift the background to #f0f0f0 (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 #397957 as the background.

Brands using this color

mcpConnect your agent — build around #397957
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 #397957 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397957-a2beb2-d259d4-1f2d2c-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