Color

#56ef1f

#56ef1f
hex#56ef1f
rgbrgb(86, 239, 31)
hslhsl(104, 87%, 53%)
oklchoklch(0.837 0.26 139.8)
Closest name: Becquerel (#4bec13)Relative luminance 0.6381

Colors that go with #56ef1f

Deep Sky Blue, Violet and Hot Pink 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 →

#b81fef

#bfef1f · #1fef50

#1f56ef · #ef1f56

Split-complementary

Open in tool →

#501fef · #ef1fbf

#1fbfef · #b81fef · #ef501f

Contrast

#56ef1f as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #2a8609 as the text (4.65:1)
  • AAA: use #206407 as the text (7.27:1)
  • AA: or shift the background to #595959 (4.59:1)
  • AAA: or shift the background to #3d3d3d (7.12:1)
Aaon black
13.76:1passpasspassPasses 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 #56ef1f 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 #56ef1f
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 #56ef1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/56ef1f-a6bea2-724edf-1f2d22-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