Color

#ecf15f

#ecf15f
hex#ecf15f
rgbrgb(236, 241, 95)
hslhsl(62, 84%, 66%)
oklchoklch(0.928 0.166 111.1)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.8157

Colors that go with #ecf15f

Charcoal, Lilac and 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 →

#645ff1

#f1ad5f · #a3f15f

#5fecf1 · #f15fec

Split-complementary

Open in tool →

#5fa3f1 · #ad5ff1

#5ff1ad · #645ff1 · #f15fa3

Contrast

#ecf15f as textRatioAAAA largeAAAFix
Aaon white
1.21:1failfailfail
  • AA: use #767a0b as the text (4.61:1)
  • AAA: use #565908 as the text (7.43:1)
  • AA: or shift the background to #696969 (4.53:1)
  • AAA: or shift the background to #4a4a4a (7.31:1)
Aaon black
17.31:1passpasspassPasses 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 #ecf15f 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 #ecf15f
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 #ecf15f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ecf15f-babea2-4e8fdf-272d1f-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