Color

#3be515

#3be515
hex#3be515
rgbrgb(59, 229, 21)
hslhsl(109, 83%, 49%)
oklchoklch(0.805 0.261 141.2)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5702

Colors that go with #3be515

Deep Sky Blue, Taupe and Violet 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 →

#bf15e5

#a3e515 · #15e557

#153be5 · #e5153b

Split-complementary

Open in tool →

#5715e5 · #e515a3

#15a3e5 · #bf15e5 · #e55715

Contrast

#3be515 as textRatioAAAA largeAAAFix
Aaon white
1.69:1failfailfail
  • AA: use #23870d as the text (4.62:1)
  • AAA: use #1b670a as the text (7.02:1)
  • AA: or shift the background to #525252 (4.62:1)
  • AAA: or shift the background to #363636 (7.14:1)
Aaon black
12.4:1passpasspassPasses 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 #3be515 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 #3be515
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 #3be515 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3be515-a4bea2-7e4edf-1f2d23-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