Color

#4cb021

#4cb021
hex#4cb021
rgbrgb(76, 176, 33)
hslhsl(102, 68%, 41%)
oklchoklch(0.671 0.196 138.6)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.327

Colors that go with #4cb021

Royal Blue, Taupe and Medium Orchid 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 →

#8521b0

#93b021 · #21b03e

#214cb0 · #b0214c

Split-complementary

Open in tool →

#3e21b0 · #b02193

#2193b0 · #8521b0 · #b03e21

Contrast

#4cb021 as textRatioAAAA largeAAAFix
Aaon white
2.79:1failfailfail
  • AA: use #3a8519 as the text (4.62:1)
  • AAA: use #2b6313 as the text (7.25:1)
  • AA: or shift the background to #333333 (4.54:1)
  • AAA: or shift the background to #0a0a0a (7.11:1)
Aaon black
7.54:1passpasspassPasses 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 #4cb021 as the background.

Brands using this color

mcpConnect your agent — build around #4cb021
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 #4cb021 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4cb021-a7bea2-6e4edf-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