Color

#45fc54

#45fc54
hex#45fc54
rgbrgb(69, 252, 84)
hslhsl(125, 97%, 63%)
oklchoklch(0.869 0.254 144)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7153

Colors that go with #45fc54

Violet, Hot Pink and Plum 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 →

#fc45ed

#91fc45 · #45fcb0

#5445fc · #fc5445

Split-complementary

Open in tool →

#b045fc · #fc4591

#4591fc · #fc45ed · #fcb045

Contrast

#45fc54 as textRatioAAAA largeAAAFix
Aaon white
1.37:1failfailfail
  • AA: use #02880d as the text (4.64:1)
  • AAA: use #02640a as the text (7.42:1)
  • AA: or shift the background to #616161 (4.51:1)
  • AAA: or shift the background to #424242 (7.32:1)
Aaon black
15.31:1passpasspassPasses 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 #45fc54 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 #45fc54
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 #45fc54 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45fc54-a2bea7-a54edf-1f2d26-ecf1e9?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