Color

#91fe52

#91fe52
hex#91fe52
rgbrgb(145, 254, 82)
hslhsl(98, 99%, 66%)
oklchoklch(0.899 0.228 136.3)
Closest name: Acid Green (#8ffe09)Relative luminance 0.7751

Colors that go with #91fe52

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf52fe

#e7fe52 · #52fe69

#5291fe · #fe5291

Split-complementary

Open in tool →

#6952fe · #fe52e7

#52e7fe · #bf52fe · #fe6952

Contrast

#91fe52 as textRatioAAAA largeAAAFix
Aaon white
1.27:1failfailfail
  • AA: use #318401 as the text (4.74:1)
  • AAA: use #266501 as the text (7.13:1)
  • AA: or shift the background to #666666 (4.51:1)
  • AAA: or shift the background to #474747 (7.3:1)
Aaon black
16.5:1passpasspassPasses 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 #91fe52 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 #91fe52
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 #91fe52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/91fe52-a9bea2-644edf-1f2d20-f0f1e9?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