Color

#5bf54d

#5bf54d
hex#5bf54d
rgbrgb(91, 245, 77)
hslhsl(115, 89%, 63%)
oklchoklch(0.856 0.244 141.9)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6806

Colors that go with #5bf54d

Deep Sky Blue, Violet 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 →

#e74df5

#aff54d · #4df593

#4d5bf5 · #f54d5b

Split-complementary

Open in tool →

#934df5 · #f54daf

#4daff5 · #e74df5 · #f5934d

Contrast

#5bf54d as textRatioAAAA largeAAAFix
Aaon white
1.44:1failfailfail
  • AA: use #128708 as the text (4.67:1)
  • AAA: use #0e6506 as the text (7.28:1)
  • AA: or shift the background to #5e5e5e (4.51:1)
  • AAA: or shift the background to #404040 (7.21:1)
Aaon black
14.61:1passpasspassPasses 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 #5bf54d 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 #5bf54d
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 #5bf54d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bf54d-a2bea3-8d4edf-1f2d24-eef1e9?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