Color

#54fc45

#54fc45
hex#54fc45
rgbrgb(84, 252, 69)
hslhsl(115, 97%, 63%)
oklchoklch(0.871 0.259 141.9)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7194

Colors that go with #54fc45

Violet, Deep Sky Blue 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 →

#ed45fc

#b0fc45 · #45fc91

#4554fc · #fc4554

Split-complementary

Open in tool →

#9145fc · #fc45b0

#45b0fc · #ed45fc · #fc9145

Contrast

#54fc45 as textRatioAAAA largeAAAFix
Aaon white
1.36:1failfailfail
  • AA: use #0d8802 as the text (4.63:1)
  • AAA: use #0a6402 as the text (7.4:1)
  • AA: or shift the background to #616161 (4.54:1)
  • AAA: or shift the background to #454545 (7.03:1)
Aaon black
15.39:1passpasspassPasses 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 #54fc45 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 #54fc45
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 #54fc45 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/54fc45-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