Color

#e5f628

#e5f628
hex#e5f628
rgbrgb(229, 246, 40)
hslhsl(65, 92%, 56%)
oklchoklch(0.929 0.203 114.8)
Closest name: Banana Flash (#eefe02)Relative luminance 0.8272

Colors that go with #e5f628

Blue, Charcoal and Crimson 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 →

#3928f6

#f6a028 · #7ef628

#28e5f6 · #f628e5

Split-complementary

Open in tool →

#287ef6 · #a028f6

#28f6a0 · #3928f6 · #f6287e

Contrast

#e5f628 as textRatioAAAA largeAAAFix
Aaon white
1.2:1failfailfail
  • AA: use #717a05 as the text (4.68:1)
  • AAA: use #565d04 as the text (7.09:1)
  • AA: or shift the background to #696969 (4.59:1)
  • AAA: or shift the background to #4d4d4d (7.06:1)
Aaon black
17.54:1passpasspassPasses 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 #e5f628 as the background.

Brands using this color

mcpConnect your agent — build around #e5f628
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 #e5f628 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e5f628-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