Color

#399339

#399339
hex#399339
rgbrgb(57, 147, 57)
hslhsl(120, 44%, 40%)
oklchoklch(0.589 0.153 143.3)
Closest name: Green Revolution (#009944)Relative luminance 0.2203

Colors that go with #399339

Charcoal, Crimson and Royal 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 →

#933993

#669339 · #399366

#393993 · #933939

Split-complementary

Open in tool →

#663993 · #933966

#396693 · #933993 · #936639

Contrast

#399339 as textRatioAAAA largeAAAFix
Aaon white
3.88:1failpassfail
  • AA: use #338433 as the text (4.68:1)
  • AAA: use #276327 as the text (7.24:1)
  • AA: or shift the background to #171717 (4.62:1)
Aaon black
5.41:1passpassfail
  • AAA: use #43ad43 as the text (7.3:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #399339 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 #399339
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 #399339 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/399339-a2bea5-994edf-1f2d25-edf1e9?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