Color

#03fc0b

#03fc0b
hex#03fc0b
rgbrgb(3, 252, 11)
hslhsl(122, 98%, 50%)
oklchoklch(0.859 0.291 142.6)
Closest name: EGA Green (#01ff07)Relative luminance 0.6966

Colors that go with #03fc0b

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 →

#fc03f4

#77fc03 · #03fc88

#0b03fc · #fc0b03

Split-complementary

Open in tool →

#8803fc · #fc0377

#0377fc · #fc03f4 · #fc8803

Contrast

#03fc0b as textRatioAAAA largeAAAFix
Aaon white
1.41:1failfailfail
  • AA: use #018806 as the text (4.64:1)
  • AAA: use #016504 as the text (7.33:1)
  • AA: or shift the background to #5e5e5e (4.61:1)
  • AAA: or shift the background to #424242 (7.15:1)
Aaon black
14.93:1passpasspassPasses 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 #03fc0b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #03fc0b
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 #03fc0b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03fc0b-a2bea6-9e4edf-1f2d26-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