Color

#e4ff5c

#e4ff5c
hex#e4ff5c
rgbrgb(228, 255, 92)
hslhsl(70, 100%, 68%)
oklchoklch(0.951 0.185 118.1)
Closest name: Biohazard Suit (#fbfb4c)Relative luminance 0.8879

Colors that go with #e4ff5c

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 →

#775cff

#ffc95c · #92ff5c

#5ce4ff · #ff5ce4

Split-complementary

Open in tool →

#5c92ff · #c95cff

#5cffc9 · #775cff · #ff5c92

Contrast

#e4ff5c as textRatioAAAA largeAAAFix
Aaon white
1.12:1failfailfail
  • AA: use #667a00 as the text (4.83:1)
  • AAA: use #4d5c00 as the text (7.38:1)
  • AA: or shift the background to #6e6e6e (4.55:1)
  • AAA: or shift the background to #4f4f4f (7.32:1)
Aaon black
18.76:1passpasspassPasses 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 #e4ff5c 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 #e4ff5c
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 #e4ff5c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e4ff5c-b6bea2-4e7cdf-252d1f-f1efe9?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