Color

#4fe538

#4fe538
hex#4fe538
rgbrgb(79, 229, 56)
hslhsl(112, 77%, 56%)
oklchoklch(0.811 0.243 141.3)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5799

Colors that go with #4fe538

Deep Sky Blue, Taupe and Violet 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 →

#ce38e5

#a6e538 · #38e578

#384fe5 · #e5384f

Split-complementary

Open in tool →

#7838e5 · #e538a6

#38a6e5 · #ce38e5 · #e57838

Contrast

#4fe538 as textRatioAAAA largeAAAFix
Aaon white
1.67:1failfailfail
  • AA: use #218712 as the text (4.63:1)
  • AAA: use #18630d as the text (7.42:1)
  • AA: or shift the background to #545454 (4.54:1)
  • AAA: or shift the background to #383838 (7.03:1)
Aaon black
12.6:1passpasspassPasses 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 #4fe538 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 #4fe538
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 #4fe538 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4fe538-a2bea2-864edf-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