brandsweets

Color

#ecf84f

#ecf84f
hex#ecf84f
rgbrgb(236, 248, 79)
hslhsl(64, 92%, 64%)
oklchoklch(0.941 0.184 113.4)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.8553
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
ecf84f5a4ff8

#5a4ff8

Analogous

Open in tool →
ecf84ff8ae4f98f84f

#f8ae4f · #98f84f

Triadic

Open in tool →
ecf84f4fecf8f84fec

#4fecf8 · #f84fec

Split-complementary

Open in tool →
ecf84f4f98f8ae4ff8

#4f98f8 · #ae4ff8

Tetradic

Open in tool →
ecf84f4ff8ae5a4ff8f84f98

#4ff8ae · #5a4ff8 · #f84f98

Contrast

#ecf84f as textRatioAAAA largeAAAFix
Aaon white
1.16:1failfailfail
  • AA: use #737a05 as the text (4.65:1)
  • AAA: use #575d04 as the text (7.06:1)
  • AA: or shift the background to #6b6b6b (4.59:1)
  • AAA: or shift the background to #4f4f4f (7.06:1)
Aaon black
18.11:1passpasspassPasses 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 #ecf84f as the background.

Brands using this color

mcpConnect your agent — build around #ecf84f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #ecf84f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ecf84f-b9bea2-4e8adf-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