Color

#3af137

#3af137
hex#3af137
rgbrgb(58, 241, 55)
hslhsl(119, 87%, 58%)
oklchoklch(0.837 0.262 142.6)
Closest name: Becquerel (#4bec13)Relative luminance 0.6409

Colors that go with #3af137

Violet, Deep Sky Blue and Hot Pink 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 →

#ee37f1

#97f137 · #37f191

#373af1 · #f1373a

Split-complementary

Open in tool →

#9137f1 · #f13797

#3797f1 · #ee37f1 · #f19137

Contrast

#3af137 as textRatioAAAA largeAAAFix
Aaon white
1.52:1failfailfail
  • AA: use #0c8a0a as the text (4.51:1)
  • AAA: use #096407 as the text (7.4:1)
  • AA: or shift the background to #595959 (4.61:1)
  • AAA: or shift the background to #3d3d3d (7.15:1)
Aaon black
13.82:1passpasspassPasses 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 #3af137 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 #3af137
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 #3af137 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3af137-a2bea5-964edf-1f2d25-edf1e9?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