Color

#2b9d01

#2b9d01
hex#2b9d01
rgbrgb(43, 157, 1)
hslhsl(104, 99%, 31%)
oklchoklch(0.609 0.197 140.4)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2463

Colors that go with #2b9d01

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 →

#74019d

#799d01 · #019d25

#012b9d · #9d012b

Split-complementary

Open in tool →

#25019d · #9d0179

#01799d · #74019d · #9d2501

Contrast

#2b9d01 as textRatioAAAA largeAAAFix
Aaon white
3.54:1failpassfail
  • AA: use #258901 as the text (4.51:1)
  • AAA: use #1b6501 as the text (7.22:1)
  • AA: or shift the background to #212121 (4.54:1)
Aaon black
5.93:1passpassfail
  • AAA: use #2fad01 as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b9d01 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 #2b9d01
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 #2b9d01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b9d01-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