Color

#30cf5b

#30cf5b
hex#30cf5b
rgbrgb(48, 207, 91)
hslhsl(136, 62%, 50%)
oklchoklch(0.751 0.203 147.6)
Closest name: Battletoad (#11cc55)Relative luminance 0.4601

Colors that go with #30cf5b

Blue, Charcoal and Royal 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 →

#cf30a4

#55cf30 · #30cfaa

#5b30cf · #cf5b30

Split-complementary

Open in tool →

#aa30cf · #cf3055

#3055cf · #cf30a4 · #cfaa30

Contrast

#30cf5b as textRatioAAAA largeAAAFix
Aaon white
2.06:1failfailfail
  • AA: use #20883c as the text (4.52:1)
  • AAA: use #17632b as the text (7.35:1)
  • AA: or shift the background to #474747 (4.51:1)
  • AAA: or shift the background to #292929 (7.07:1)
Aaon black
10.2:1passpasspassPasses 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 #30cf5b as the background.

Brands using this color

mcpConnect your agent — build around #30cf5b
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 #30cf5b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30cf5b-a2bead-b959d4-1f2d29-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