Color

#309e2e

#309e2e
hex#309e2e
rgbrgb(48, 158, 46)
hslhsl(119, 55%, 40%)
oklchoklch(0.615 0.179 142.8)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2528

Colors that go with #309e2e

Charcoal, Crimson and 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 →

#9c2e9e

#689e2e · #2e9e64

#2e309e · #9e2e30

Split-complementary

Open in tool →

#642e9e · #9e2e68

#2e689e · #9c2e9e · #9e642e

Contrast

#309e2e as textRatioAAAA largeAAAFix
Aaon white
3.47:1failpassfail
  • AA: use #298627 as the text (4.63:1)
  • AAA: use #1e631d as the text (7.35:1)
  • AA: or shift the background to #212121 (4.64:1)
Aaon black
6.06:1passpassfail
  • AAA: use #35ae32 as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #309e2e 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 #309e2e
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 #309e2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/309e2e-a2bea5-964edf-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