Color

#e5fa00

#e5fa00
hex#e5fa00
rgbrgb(229, 250, 0)
hslhsl(65, 100%, 49%)
oklchoklch(0.937 0.214 115.8)
Closest name: Banana Flash (#eefe02)Relative luminance 0.8503

Colors that go with #e5fa00

Blue, Crimson and Red 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 →

#1500fa

#fa9200 · #68fa00

#00e5fa · #fa00e5

Split-complementary

Open in tool →

#0068fa · #9200fa

#00fa92 · #1500fa · #fa0068

Contrast

#e5fa00 as textRatioAAAA largeAAAFix
Aaon white
1.17:1failfailfail
  • AA: use #707a00 as the text (4.7:1)
  • AAA: use #545c00 as the text (7.22:1)
  • AA: or shift the background to #6b6b6b (4.57:1)
  • AAA: or shift the background to #4f4f4f (7.02:1)
Aaon black
18.01:1passpasspassPasses 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 #e5fa00 as the background.

Brands using this color

mcpConnect your agent — build around #e5fa00
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 #e5fa00 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e5fa00-b8bea2-4e88df-262d1f-f1eee9?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