Color

#1bfe53

#1bfe53
hex#1bfe53
rgbrgb(27, 254, 83)
hslhsl(135, 99%, 55%)
oklchoklch(0.869 0.265 145.5)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7174

Colors that go with #1bfe53

Violet, Hot Pink and Plum 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 →

#fe1bc5

#53fe1b · #1bfec5

#531bfe · #fe531b

Split-complementary

Open in tool →

#c51bfe · #fe1b53

#1b53fe · #fe1bc5 · #fec51b

Contrast

#1bfe53 as textRatioAAAA largeAAAFix
Aaon white
1.37:1failfailfail
  • AA: use #018923 as the text (4.56:1)
  • AAA: use #01651a as the text (7.3:1)
  • AA: or shift the background to #616161 (4.53:1)
  • AAA: or shift the background to #454545 (7.01:1)
Aaon black
15.35:1passpasspassPasses 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 #1bfe53 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 #1bfe53
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 #1bfe53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1bfe53-a2beac-b759d4-1f2d29-ebf1e9?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