brandsweets

Color

#bbfb18

#bbfb18
hex#bbfb18
rgbrgb(187, 251, 24)
hslhsl(77, 97%, 54%)
oklchoklch(0.911 0.229 126.3)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7963
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
bbfb185818fb

#5818fb

Analogous

Open in tool →
bbfb18fbca1849fb18

#fbca18 · #49fb18

Triadic

Open in tool →
bbfb1818bbfbfb18bb

#18bbfb · #fb18bb

Split-complementary

Open in tool →
bbfb181849fbca18fb

#1849fb · #ca18fb

Tetradic

Open in tool →
bbfb1818fbca5818fbfb1849

#18fbca · #5818fb · #fb1849

Contrast

#bbfb18 as textRatioAAAA largeAAAFix
Aaon white
1.24:1failfailfail
  • AA: use #5b7e02 as the text (4.74:1)
  • AAA: use #455f01 as the text (7.27:1)
  • AA: or shift the background to #666666 (4.63:1)
  • AAA: or shift the background to #4a4a4a (7.14:1)
Aaon black
16.93:1passpasspassPasses 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 #bbfb18 as the background.

Brands using this color

mcpConnect your agent — build around #bbfb18
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 #bbfb18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bbfb18-b3bea2-4e6bdf-232d1f-f1efe9?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