Color

#5bfb56

#5bfb56
hex#5bfb56
rgbrgb(91, 251, 86)
hslhsl(118, 95%, 66%)
oklchoklch(0.872 0.245 142.7)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7189

Colors that go with #5bfb56

Violet, Charcoal and Hot Pink 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 →

#f556fb

#aefb56 · #56fba3

#565bfb · #fb565b

Split-complementary

Open in tool →

#a356fb · #fb56ae

#56aefb · #f556fb · #fba356

Contrast

#5bfb56 as textRatioAAAA largeAAAFix
Aaon white
1.37:1failfailfail
  • AA: use #088603 as the text (4.75:1)
  • AAA: use #066803 as the text (7.03:1)
  • AA: or shift the background to #616161 (4.54:1)
  • AAA: or shift the background to #454545 (7.02:1)
Aaon black
15.38:1passpasspassPasses 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 #5bfb56 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 #5bfb56
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 #5bfb56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bfb56-a2bea4-944edf-1f2d25-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