Color

#418b5b

#418b5b
hex#418b5b
rgbrgb(65, 139, 91)
hslhsl(141, 36%, 40%)
oklchoklch(0.576 0.105 153.2)
Closest name: seagreen (#2e8b57)Relative luminance 0.2034

Colors that go with #418b5b

Charcoal, Royal Blue and Rust 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 →

#8b4171

#4c8b41 · #418b80

#5b418b · #8b5b41

Split-complementary

Open in tool →

#80418b · #8b414c

#414c8b · #8b4171 · #8b8041

Contrast

#418b5b as textRatioAAAA largeAAAFix
Aaon white
4.14:1failpassfail
  • AA: use #3e8456 as the text (4.53:1)
  • AAA: use #2e6140 as the text (7.24:1)
  • AA: or shift the background to #121212 (4.52:1)
Aaon black
5.07:1passpassfail
  • AAA: use #50aa6f as the text (7.32:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #418b5b 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 #418b5b
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 #418b5b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/418b5b-a2beaf-c459d4-1f2d2a-eaf1e9?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