Color

#218c26

#218c26
hex#218c26
rgbrgb(33, 140, 38)
hslhsl(123, 62%, 34%)
oklchoklch(0.561 0.168 143.5)
Closest name: Forest Green (#228b22)Relative luminance 0.1922

Colors that go with #218c26

Charcoal, Royal Blue and Dark Orchid 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 →

#8c2187

#518c21 · #218c5c

#26218c · #8c2621

Split-complementary

Open in tool →

#5c218c · #8c2151

#21518c · #8c2187 · #8c5c21

Contrast

#218c26 as textRatioAAAA largeAAAFix
Aaon white
4.34:1failpassfail
  • AA: use #208825 as the text (4.56:1)
  • AAA: use #18671c as the text (7.01:1)
  • AA: or shift the background to #0a0a0a (4.57:1)
Aaon black
4.84:1passpassfail
  • AAA: use #29ae2f as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #218c26 as the background.

Brands using this color

mcpConnect your agent — build around #218c26
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 #218c26 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/218c26-a2bea6-a04edf-1f2d26-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