Color

#399617

#399617
hex#399617
rgbrgb(57, 150, 23)
hslhsl(104, 73%, 34%)
oklchoklch(0.594 0.179 139.4)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2274

Colors that go with #399617

Crimson, Royal Blue and Charcoal 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 →

#741796

#789617 · #179635

#173996 · #961739

Split-complementary

Open in tool →

#351796 · #961778

#177896 · #741796 · #963517

Contrast

#399617 as textRatioAAAA largeAAAFix
Aaon white
3.78:1failpassfail
  • AA: use #328415 as the text (4.72:1)
  • AAA: use #276510 as the text (7.11:1)
  • AA: or shift the background to #1c1c1c (4.5:1)
Aaon black
5.55:1passpassfail
  • AAA: use #42ac1b as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #399617 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 #399617
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 #399617 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/399617-a6bea2-724edf-1f2d22-eff1e9?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