Color

#218c69

#218c69
hex#218c69
rgbrgb(33, 140, 105)
hslhsl(160, 62%, 34%)
oklchoklch(0.572 0.109 165.9)
Closest name: Elf (#1b8a6b)Relative luminance 0.201

Colors that go with #218c69

Charcoal, Crimson and Medium Violet Red 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 →

#8c2145

#218c33 · #217b8c

#69218c · #8c6921

Split-complementary

Open in tool →

#8c217b · #8c3321

#33218c · #8c2145 · #7b8c21

Contrast

#218c69 as textRatioAAAA largeAAAFix
Aaon white
4.18:1failpassfail
  • AA: use #1f8462 as the text (4.63:1)
  • AAA: use #17634a as the text (7.19:1)
  • AA: or shift the background to #0f0f0f (4.58:1)
Aaon black
5.02:1passpassfail
  • AAA: use #28a97e as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #218c69 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 #218c69
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 #218c69 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/218c69-a2beb8-d459be-1f2c2d-e9f1eb?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