Color

#ecf80d

#ecf80d
hex#ecf80d
rgbrgb(236, 248, 13)
hslhsl(63, 94%, 51%)
oklchoklch(0.938 0.208 113.3)
Closest name: Banana Flash (#eefe02)Relative luminance 0.85

Colors that go with #ecf80d

Crimson, Violet and Plum 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 #ecf80d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#180df8

#f88e0d · #76f80d

#0decf8 · #f80dec

Split-complementary

Open in tool →

#0d76f8 · #8e0df8

#0df88e · #180df8 · #f80d76

Contrast

#ecf80d as textRatioAAAA largeAAAFix
Aaon white
1.17:1failfailfail
  • AA: use #767c04 as the text (4.51:1)
  • AAA: use #555903 as the text (7.46:1)
  • AA: or shift the background to #6b6b6b (4.57:1)
  • AAA: or shift the background to #4f4f4f (7.02:1)
Aaon black
18:1passpasspassPasses 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 #ecf80d as the background.

Brands using this color

mcpConnect your agent — build around #ecf80d
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 #ecf80d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ecf80d-b9bea2-4e8ddf-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