Color

#18af3e

#18af3e
hex#18af3e
rgbrgb(24, 175, 62)
hslhsl(135, 76%, 39%)
oklchoklch(0.659 0.194 146.1)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.312

Colors that go with #18af3e

Blue, Royal Blue and Taupe 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 →

#af1889

#3eaf18 · #18af89

#3e18af · #af3e18

Split-complementary

Open in tool →

#8918af · #af183e

#183eaf · #af1889 · #af8918

Contrast

#18af3e as textRatioAAAA largeAAAFix
Aaon white
2.9:1failfailfail
  • AA: use #12872f as the text (4.63:1)
  • AAA: use #0e6724 as the text (7.04:1)
  • AA: or shift the background to #303030 (4.55:1)
  • AAA: or shift the background to #050505 (7.03:1)
Aaon black
7.24:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18af3e 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 #18af3e
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 #18af3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18af3e-a2beac-b759d4-1f2d29-ebf1e9?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