Color

#4bf042

#4bf042
hex#4bf042
rgbrgb(75, 240, 66)
hslhsl(117, 85%, 60%)
oklchoklch(0.839 0.25 142.3)
Closest name: Becquerel (#4bec13)Relative luminance 0.6421

Colors that go with #4bf042

Deep Sky Blue, Violet 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 →

#e742f0

#a2f042 · #42f090

#424bf0 · #f0424b

Split-complementary

Open in tool →

#9042f0 · #f042a2

#42a2f0 · #e742f0 · #f09042

Contrast

#4bf042 as textRatioAAAA largeAAAFix
Aaon white
1.52:1failfailfail
  • AA: use #11890b as the text (4.56:1)
  • AAA: use #0d6308 as the text (7.49:1)
  • AA: or shift the background to #595959 (4.62:1)
  • AAA: or shift the background to #3d3d3d (7.16:1)
Aaon black
13.84:1passpasspassPasses 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 #4bf042 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 #4bf042
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 #4bf042 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bf042-a2bea4-924edf-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