Color

#4bc101

#4bc101
hex#4bc101
rgbrgb(75, 193, 1)
hslhsl(97, 99%, 38%)
oklchoklch(0.715 0.223 138.5)
Closest name: Frog (#58bc08)Relative luminance 0.3964

Colors that go with #4bc101

Blue, 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 →

#7701c1

#aac101 · #01c117

#014bc1 · #c1014b

Split-complementary

Open in tool →

#1701c1 · #c101aa

#01aac1 · #7701c1 · #c11701

Contrast

#4bc101 as textRatioAAAA largeAAAFix
Aaon white
2.35:1failfailfail
  • AA: use #338401 as the text (4.73:1)
  • AAA: use #276501 as the text (7.12:1)
  • AA: or shift the background to #3d3d3d (4.62:1)
  • AAA: or shift the background to #1f1f1f (7.01:1)
Aaon black
8.93:1passpasspassPasses 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 #4bc101 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 #4bc101
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 #4bc101 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bc101-a9bea2-624edf-1f2d20-f0f1e9?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