Color

#397a33

#397a33
hex#397a33
rgbrgb(57, 122, 51)
hslhsl(115, 41%, 34%)
oklchoklch(0.52 0.124 142)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1503

Colors that go with #397a33

Charcoal, Royal Blue 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 →

#74337a

#5d7a33 · #337a51

#33397a · #7a3339

Split-complementary

Open in tool →

#51337a · #7a335d

#335d7a · #74337a · #7a5133

Contrast

#397a33 as textRatioAAAA largeAAAFix
Aaon white
5.24:1passpassfail
  • AAA: use #2d6129 as the text (7.36:1)
Aaon black
4.01:1failpassfail
  • AA: use #3e8538 as the text (4.62:1)
  • AAA: use #4fa947 as the text (7.1:1)
  • AA: or shift the background to #f0f0f0 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397a33 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 #397a33
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 #397a33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397a33-a2bea3-8d4edf-1f2d24-eef1e9?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