Color

#1bf355

#1bf355
hex#1bf355
rgbrgb(27, 243, 85)
hslhsl(136, 90%, 53%)
oklchoklch(0.841 0.252 146)
Closest name: Becquerel (#4bec13)Relative luminance 0.6499

Colors that go with #1bf355

Violet, Deep Sky Blue 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 →

#f31bb9

#4ef31b · #1bf3c1

#551bf3 · #f3551b

Split-complementary

Open in tool →

#c11bf3 · #f31b4e

#1b4ef3 · #f31bb9 · #f3c11b

Contrast

#1bf355 as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #078829 as the text (4.6:1)
  • AAA: use #05661f as the text (7.18:1)
  • AA: or shift the background to #595959 (4.67:1)
  • AAA: or shift the background to #3d3d3d (7.24:1)
Aaon black
14:1passpasspassPasses 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 #1bf355 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 #1bf355
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 #1bf355 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1bf355-a2bead-b959d4-1f2d29-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