Color

#309c42

#309c42
hex#309c42
rgbrgb(48, 156, 66)
hslhsl(130, 53%, 40%)
oklchoklch(0.612 0.161 146)
Closest name: Green Revolution (#009944)Relative luminance 0.248

Colors that go with #309c42

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 →

#9c308a

#549c30 · #309c78

#42309c · #9c4230

Split-complementary

Open in tool →

#78309c · #9c3054

#30549c · #9c308a · #9c7830

Contrast

#309c42 as textRatioAAAA largeAAAFix
Aaon white
3.52:1failpassfail
  • AA: use #298538 as the text (4.66:1)
  • AAA: use #1f652b as the text (7.11:1)
  • AA: or shift the background to #212121 (4.57:1)
Aaon black
5.96:1passpassfail
  • AAA: use #35ac49 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 #309c42 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #309c42
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 #309c42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/309c42-a2beaa-b14edf-1f2d28-ecf1e9?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