Color

#5be18e

#5be18e
hex#5be18e
rgbrgb(91, 225, 142)
hslhsl(143, 69%, 62%)
oklchoklch(0.815 0.166 153.3)
Closest name: Grotesque Green (#64e986)Relative luminance 0.5803

Colors that go with #5be18e

Deep Sky Blue, Mustard Yellow and Royal Blue 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 →

#e15bae

#6be15b · #5be1d1

#8e5be1 · #e18e5b

Split-complementary

Open in tool →

#d15be1 · #e15b6b

#5b6be1 · #e15bae · #e1d15b

Contrast

#5be18e as textRatioAAAA largeAAAFix
Aaon white
1.67:1failfailfail
  • AA: use #198642 as the text (4.64:1)
  • AAA: use #126331 as the text (7.36:1)
  • AA: or shift the background to #545454 (4.55:1)
  • AAA: or shift the background to #383838 (7.04:1)
Aaon black
12.61:1passpasspassPasses 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 #5be18e 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 #5be18e
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 #5be18e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5be18e-a2beb0-c859d4-1f2d2b-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