Color

#397959

#397959
hex#397959
rgbrgb(57, 121, 89)
hslhsl(150, 36%, 35%)
oklchoklch(0.524 0.084 159.7)
Closest name: Amazon (#387b54)Relative luminance 0.1527

Colors that go with #397959

Charcoal, Medium Violet Red and Blue 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 →

#793959

#397939 · #397979

#593979 · #795939

Split-complementary

Open in tool →

#793979 · #793939

#393979 · #793959 · #797939

Contrast

#397959 as textRatioAAAA largeAAAFix
Aaon white
5.18:1passpassfail
  • AAA: use #2e6147 as the text (7.2:1)
Aaon black
4.05:1failpassfail
  • AA: use #3e8461 as the text (4.68:1)
  • AAA: use #4ea67a as the text (7.06:1)
  • 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 #397959 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 #397959
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 #397959 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397959-a2beb3-d459d2-1f2d2c-e9f1ea?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