Color

#03fc52

#03fc52
hex#03fc52
rgbrgb(3, 252, 82)
hslhsl(139, 98%, 50%)
oklchoklch(0.862 0.265 145.7)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7025

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fc03ad

#30fc03 · #03fccf

#5203fc · #fc5203

Split-complementary

Open in tool →

#cf03fc · #fc0330

#0330fc · #fc03ad · #fccf03

Contrast

#03fc52 as textRatioAAAA largeAAAFix
Aaon white
1.4:1failfailfail
  • AA: use #01882c as the text (4.61:1)
  • AAA: use #016521 as the text (7.28:1)
  • AA: or shift the background to #5e5e5e (4.65:1)
  • AAA: or shift the background to #424242 (7.2:1)
Aaon black
15.05:1passpasspassPasses 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 #03fc52 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 #03fc52
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 #03fc52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03fc52-a2beae-c059d4-1f2d2a-ebf1e9?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