Color

#56bb1b

#56bb1b
hex#56bb1b
rgbrgb(86, 187, 27)
hslhsl(98, 75%, 42%)
oklchoklch(0.704 0.206 137.5)
Closest name: Frog (#58bc08)Relative luminance 0.376

Colors that go with #56bb1b

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 →

#811bbb

#a6bb1b · #1bbb30

#1b56bb · #bb1b56

Split-complementary

Open in tool →

#301bbb · #bb1ba6

#1ba6bb · #811bbb · #bb301b

Contrast

#56bb1b as textRatioAAAA largeAAAFix
Aaon white
2.46:1failfailfail
  • AA: use #3d8613 as the text (4.55:1)
  • AAA: use #2d620e as the text (7.33:1)
  • AA: or shift the background to #3b3b3b (4.54:1)
  • AAA: or shift the background to #1a1a1a (7.06:1)
Aaon black
8.52:1passpasspassPasses 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 #56bb1b 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 #56bb1b
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 #56bb1b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/56bb1b-a9bea2-644edf-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