Color

#b3f024

#b3f024
hex#b3f024
rgbrgb(179, 240, 36)
hslhsl(78, 87%, 54%)
oklchoklch(0.881 0.218 126.4)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7203

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6124f0

#f0c724 · #4cf024

#24b3f0 · #f024b3

Split-complementary

Open in tool →

#244cf0 · #c724f0

#24f0c7 · #6124f0 · #f0244c

Contrast

#b3f024 as textRatioAAAA largeAAAFix
Aaon white
1.36:1failfailfail
  • AA: use #5d8109 as the text (4.56:1)
  • AAA: use #455f07 as the text (7.26:1)
  • AA: or shift the background to #616161 (4.54:1)
  • AAA: or shift the background to #454545 (7.03:1)
Aaon black
15.41:1passpasspassPasses 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 #b3f024 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 #b3f024
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 #b3f024 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3f024-b2bea2-4e69df-232d1f-f1f0e9?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