Color

#3de228

#3de228
hex#3de228
rgbrgb(61, 226, 40)
hslhsl(113, 76%, 52%)
oklchoklch(0.798 0.252 141.7)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5554

Colors that go with #3de228

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 →

#cc28e2

#9ae228 · #28e26f

#283de2 · #e2283d

Split-complementary

Open in tool →

#6f28e2 · #e2289a

#289ae2 · #cc28e2 · #e26f28

Contrast

#3de228 as textRatioAAAA largeAAAFix
Aaon white
1.73:1failfailfail
  • AA: use #208712 as the text (4.63:1)
  • AAA: use #18670e as the text (7.03:1)
  • AA: or shift the background to #525252 (4.51:1)
  • AAA: or shift the background to #333333 (7.28:1)
Aaon black
12.11:1passpasspassPasses 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 #3de228 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 #3de228
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 #3de228 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3de228-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