Color

#4cbf18

#4cbf18
hex#4cbf18
rgbrgb(76, 191, 24)
hslhsl(101, 78%, 42%)
oklchoklch(0.71 0.216 138.9)
Closest name: Frog (#58bc08)Relative luminance 0.3886

Colors that go with #4cbf18

Charcoal, Royal Blue and Taupe 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 →

#8a18bf

#a0bf18 · #18bf36

#184cbf · #bf184c

Split-complementary

Open in tool →

#3618bf · #bf18a0

#18a0bf · #8a18bf · #bf3618

Contrast

#4cbf18 as textRatioAAAA largeAAAFix
Aaon white
2.39:1failfailfail
  • AA: use #358410 as the text (4.71:1)
  • AAA: use #28640c as the text (7.2:1)
  • AA: or shift the background to #3d3d3d (4.54:1)
  • AAA: or shift the background to #1c1c1c (7.12:1)
Aaon black
8.77:1passpasspassPasses 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 #4cbf18 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 #4cbf18
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 #4cbf18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4cbf18-a7bea2-6b4edf-1f2d21-eff1e9?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