Color

#397942

#397942
hex#397942
rgbrgb(57, 121, 66)
hslhsl(128, 36%, 35%)
oklchoklch(0.519 0.108 146.8)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1494

Colors that go with #397942

Charcoal, Rust and Dark Orchid 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 →

#793971

#517939 · #397962

#423979 · #794239

Split-complementary

Open in tool →

#623979 · #793951

#395179 · #793971 · #796239

Contrast

#397942 as textRatioAAAA largeAAAFix
Aaon white
5.27:1passpassfail
  • AAA: use #2e6135 as the text (7.3:1)
Aaon black
3.99:1failpassfail
  • AA: use #3e8447 as the text (4.6:1)
  • AAA: use #50aa5c as the text (7.25:1)
  • AA: or shift the background to #f0f0f0 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397942 as the background.

Brands using this color

mcpConnect your agent — build around #397942
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 #397942 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397942-a2bea9-ac4edf-1f2d27-ecf1e9?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