Color

#1bc540

#1bc540
hex#1bc540
rgbrgb(27, 197, 64)
hslhsl(133, 76%, 44%)
oklchoklch(0.718 0.216 145.4)
Closest name: Alienated (#00cc55)Relative luminance 0.4054

Colors that go with #1bc540

Blue, Charcoal and Royal Blue 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 →

#c51ba1

#4bc51b · #1bc595

#401bc5 · #c5401b

Split-complementary

Open in tool →

#951bc5 · #c51b4b

#1b4bc5 · #c51ba1 · #c5951b

Contrast

#1bc540 as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #12872c as the text (4.64:1)
  • AAA: use #0e6721 as the text (7.05:1)
  • AA: or shift the background to #3d3d3d (4.71:1)
  • AAA: or shift the background to #1f1f1f (7.15:1)
Aaon black
9.11:1passpasspassPasses 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 #1bc540 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 #1bc540
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 #1bc540 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1bc540-a2beab-b84edf-1f2d28-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