Color

#34c421

#34c421
hex#34c421
rgbrgb(52, 196, 33)
hslhsl(113, 71%, 45%)
oklchoklch(0.718 0.226 141.6)
Closest name: Crude Banana (#21c40e)Relative luminance 0.4032

Colors that go with #34c421

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 →

#b121c4

#86c421 · #21c460

#2134c4 · #c42134

Split-complementary

Open in tool →

#6021c4 · #c42186

#2186c4 · #b121c4 · #c46021

Contrast

#34c421 as textRatioAAAA largeAAAFix
Aaon white
2.32:1failfailfail
  • AA: use #248717 as the text (4.61:1)
  • AAA: use #1b6411 as the text (7.3:1)
  • AA: or shift the background to #3d3d3d (4.69:1)
  • AAA: or shift the background to #1f1f1f (7.11:1)
Aaon black
9.06:1passpasspassPasses 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 #34c421 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 #34c421
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 #34c421 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/34c421-a2bea2-884edf-1f2d24-eef1e9?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