Color

#5def66

#5def66
hex#5def66
rgbrgb(93, 239, 102)
hslhsl(124, 82%, 65%)
oklchoklch(0.844 0.219 144.3)
Closest name: Emerald Ice Palace (#2af589)Relative luminance 0.6502

Colors that go with #5def66

Deep Sky 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 →

#ef5de5

#9cef5d · #5defb0

#665def · #ef665d

Split-complementary

Open in tool →

#b05def · #ef5d9c

#5d9cef · #ef5de5 · #efb05d

Contrast

#5def66 as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #0d8715 as the text (4.67:1)
  • AAA: use #0a6610 as the text (7.19:1)
  • AA: or shift the background to #595959 (4.67:1)
  • AAA: or shift the background to #3d3d3d (7.24:1)
Aaon black
14:1passpasspassPasses 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 #5def66 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 #5def66
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 #5def66 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5def66-a2bea7-a24edf-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