Color

#3de17c

#3de17c
hex#3de17c
rgbrgb(61, 225, 124)
hslhsl(143, 73%, 56%)
oklchoklch(0.804 0.194 151.5)
Closest name: Grotesque Green (#64e986)Relative luminance 0.563

Colors that go with #3de17c

Deep Sky Blue, Royal Blue and Taupe 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 →

#e13da2

#50e13d · #3de1ce

#7c3de1 · #e17c3d

Split-complementary

Open in tool →

#ce3de1 · #e13d50

#3d50e1 · #e13da2 · #e1ce3d

Contrast

#3de17c as textRatioAAAA largeAAAFix
Aaon white
1.71:1failfailfail
  • AA: use #15843f as the text (4.77:1)
  • AAA: use #106531 as the text (7.17:1)
  • AA: or shift the background to #525252 (4.56:1)
  • AAA: or shift the background to #363636 (7.05:1)
Aaon black
12.26:1passpasspassPasses 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 #3de17c as the background.

Brands using this color

mcpConnect your agent — build around #3de17c
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 #3de17c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3de17c-a2beb0-c859d4-1f2d2b-eaf1e9?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