Color

#399d07

#399d07
hex#399d07
rgbrgb(57, 157, 7)
hslhsl(100, 91%, 32%)
oklchoklch(0.613 0.191 139.1)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.25

Colors that go with #399d07

Charcoal, Crimson and Denim 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 →

#6a079c

#839c07 · #079c20

#07399c · #9c0739

Split-complementary

Open in tool →

#20079c · #9c0783

#07839c · #6a079c · #9c2007

Contrast

#399d07 as textRatioAAAA largeAAAFix
Aaon white
3.5:1failpassfail
  • AA: use #328806 as the text (4.51:1)
  • AAA: use #256605 as the text (7.04:1)
  • AA: or shift the background to #212121 (4.6:1)
Aaon black
6:1passpassfail
  • AAA: use #40af08 as the text (7.35:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #399d07 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 #399d07
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 #399d07 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/399d07-a8bea2-694edf-1f2d21-f0f1e9?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