Color

#18a028

#18a028
hex#18a028
rgbrgb(24, 160, 40)
hslhsl(127, 74%, 36%)
oklchoklch(0.615 0.191 144)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2549

Colors that go with #18a028

Charcoal, Blue and Crimson 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 →

#a01890

#4ca018 · #18a06c

#2818a0 · #a02818

Split-complementary

Open in tool →

#6c18a0 · #a0184c

#184ca0 · #a01890 · #a06c18

Contrast

#18a028 as textRatioAAAA largeAAAFix
Aaon white
3.44:1failpassfail
  • AA: use #148521 as the text (4.77:1)
  • AAA: use #0f6619 as the text (7.16:1)
  • AA: or shift the background to #242424 (4.51:1)
Aaon black
6.1:1passpassfail
  • AAA: use #1aad2b as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18a028 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 #18a028
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 #18a028 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18a028-a2bea8-aa4edf-1f2d27-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