Color

#399365

#399365
hex#399365
rgbrgb(57, 147, 101)
hslhsl(149, 44%, 40%)
oklchoklch(0.597 0.112 157.9)
Closest name: Illuminati Green (#419168)Relative luminance 0.2268

Colors that go with #399365

Charcoal, Crimson and Medium Violet Red 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 →

#933967

#3b9339 · #399391

#653993 · #936539

Split-complementary

Open in tool →

#913993 · #93393b

#393b93 · #933967 · #939139

Contrast

#399365 as textRatioAAAA largeAAAFix
Aaon white
3.79:1failpassfail
  • AA: use #33845a as the text (4.58:1)
  • AAA: use #276344 as the text (7.11:1)
  • AA: or shift the background to #1a1a1a (4.59:1)
Aaon black
5.54:1passpassfail
  • AAA: use #42a974 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #399365 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 #399365
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 #399365 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/399365-a2beb3-d459d4-1f2d2c-e9f1e9?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