Color

#45ff42

#45ff42
hex#45ff42
rgbrgb(69, 255, 66)
hslhsl(119, 100%, 63%)
oklchoklch(0.875 0.268 142.7)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7318

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#fc42ff

#a4ff42 · #42ff9e

#4245ff · #ff4245

Split-complementary

Open in tool →

#9e42ff · #ff42a4

#42a4ff · #fc42ff · #ff9e42

Contrast

#45ff42 as textRatioAAAA largeAAAFix
Aaon white
1.34:1failfailfail
  • AA: use #028a00 as the text (4.53:1)
  • AAA: use #026600 as the text (7.23:1)
  • AA: or shift the background to #616161 (4.61:1)
  • AAA: or shift the background to #454545 (7.14:1)
Aaon black
15.64:1passpasspassPasses 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 #45ff42 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 #45ff42
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #45ff42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45ff42-a2bea5-964edf-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