Color

#4bf199

#4bf199
hex#4bf199
rgbrgb(75, 241, 153)
hslhsl(148, 86%, 62%)
oklchoklch(0.853 0.184 155.5)
Closest name: Hyperpop Green (#17f9a6)Relative luminance 0.6671

Colors that go with #4bf199

Charcoal, Violet and Deep Sky 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 →

#f14ba4

#50f14b · #4bf1ec

#994bf1 · #f1994b

Split-complementary

Open in tool →

#ec4bf1 · #f14b50

#4b50f1 · #f14ba4 · #f1ec4b

Contrast

#4bf199 as textRatioAAAA largeAAAFix
Aaon white
1.46:1failfailfail
  • AA: use #0a8543 as the text (4.72:1)
  • AAA: use #076432 as the text (7.3:1)
  • AA: or shift the background to #5c5c5c (4.57:1)
  • AAA: or shift the background to #404040 (7.08:1)
Aaon black
14.34:1passpasspassPasses 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 #4bf199 as the background.

Brands using this color

mcpConnect your agent — build around #4bf199
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 #4bf199 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bf199-a2beb2-d259d4-1f2d2c-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