Color

#87f31b

#87f31b
hex#87f31b
rgbrgb(135, 243, 27)
hslhsl(90, 90%, 53%)
oklchoklch(0.865 0.245 134.5)
Closest name: lawngreen (#7cfc00)Relative luminance 0.6933

Tints & shades

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

Harmonies

Complementary

Open in tool →

#871bf3

#f3f31b · #1bf31b

#1b87f3 · #f31b87

Split-complementary

Open in tool →

#1b1bf3 · #f31bf3

#1bf3f3 · #871bf3 · #f31b1b

Contrast

#87f31b as textRatioAAAA largeAAAFix
Aaon white
1.41:1failfailfail
  • AA: use #458307 as the text (4.66:1)
  • AAA: use #336105 as the text (7.36:1)
  • AA: or shift the background to #5e5e5e (4.59:1)
  • AAA: or shift the background to #424242 (7.11:1)
Aaon black
14.87:1passpasspassPasses 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 #87f31b 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 #87f31b
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 #87f31b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/87f31b-adbea2-514edf-202d1f-f1f1e9?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