Color

#1bf33f

#1bf33f
hex#1bf33f
rgbrgb(27, 243, 63)
hslhsl(130, 90%, 53%)
oklchoklch(0.839 0.265 144.2)
Closest name: Becquerel (#4bec13)Relative luminance 0.6469

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#f31bcf

#63f31b · #1bf3ab

#3f1bf3 · #f33f1b

Split-complementary

Open in tool →

#ab1bf3 · #f31b63

#1b63f3 · #f31bcf · #f3ab1b

Contrast

#1bf33f as textRatioAAAA largeAAAFix
Aaon white
1.51:1failfailfail
  • AA: use #07881d as the text (4.62:1)
  • AAA: use #056615 as the text (7.2:1)
  • AA: or shift the background to #595959 (4.65:1)
  • AAA: or shift the background to #3d3d3d (7.21:1)
Aaon black
13.94:1passpasspassPasses 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 #1bf33f 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 #1bf33f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1bf33f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1bf33f-a2beaa-b14edf-1f2d28-ecf1e9?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