Color

#03fca1

#03fca1
hex#03fca1
rgbrgb(3, 252, 161)
hslhsl(158, 98%, 50%)
oklchoklch(0.873 0.203 158.3)
Closest name: mediumspringgreen (#00fa9a)Relative luminance 0.7221

Colors that go with #03fca1

Violet, Charcoal and Deep Sky Blue 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 →

#fc035e

#03fc24 · #03dbfc

#a103fc · #fca103

Split-complementary

Open in tool →

#fc03db · #fc2403

#2403fc · #fc035e · #dbfc03

Contrast

#03fca1 as textRatioAAAA largeAAAFix
Aaon white
1.36:1failfailfail
  • AA: use #018857 as the text (4.51:1)
  • AAA: use #016540 as the text (7.15:1)
  • AA: or shift the background to #616161 (4.55:1)
  • AAA: or shift the background to #454545 (7.05:1)
Aaon black
15.44:1passpasspassPasses 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 #03fca1 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 #03fca1
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 #03fca1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03fca1-a2beb7-d459c2-1f2c2d-e9f1eb?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