Color

#4bf529

#4bf529
hex#4bf529
rgbrgb(75, 245, 41)
hslhsl(110, 91%, 56%)
oklchoklch(0.85 0.267 141)
Closest name: Becquerel (#4bec13)Relative luminance 0.6696

Colors that go with #4bf529

Deep Sky Blue, Violet 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 →

#d329f5

#b1f529 · #29f56d

#294bf5 · #f5294b

Split-complementary

Open in tool →

#6d29f5 · #f529b1

#29b1f5 · #d329f5 · #f56d29

Contrast

#4bf529 as textRatioAAAA largeAAAFix
Aaon white
1.46:1failfailfail
  • AA: use #1c8806 as the text (4.59:1)
  • AAA: use #156605 as the text (7.16:1)
  • AA: or shift the background to #5c5c5c (4.58:1)
  • AAA: or shift the background to #404040 (7.11:1)
Aaon black
14.39:1passpasspassPasses 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 #4bf529 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 #4bf529
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 #4bf529 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bf529-a3bea2-814edf-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