Color

#87fd21

#87fd21
hex#87fd21
rgbrgb(135, 253, 33)
hslhsl(92, 98%, 56%)
oklchoklch(0.889 0.254 135.4)
Closest name: Acid Green (#8ffe09)Relative luminance 0.7551

Colors that go with #87fd21

Violet, Charcoal and Deep Sky Blue 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.

Real palettes that use #87fd21

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9621fd

#f5fd21 · #21fd28

#2187fd · #fd2187

Split-complementary

Open in tool →

#2821fd · #fd21f5

#21f5fd · #9621fd · #fd2821

Contrast

#87fd21 as textRatioAAAA largeAAAFix
Aaon white
1.3:1failfailfail
  • AA: use #3e8301 as the text (4.72:1)
  • AAA: use #306501 as the text (7.03:1)
  • AA: or shift the background to #636363 (4.61:1)
  • AAA: or shift the background to #474747 (7.12:1)
Aaon black
16.1:1passpasspassPasses 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 #87fd21 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 #87fd21
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 #87fd21 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/87fd21-acbea2-564edf-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