brandsweets

Color

#ecf71d

#ecf71d
hex#ecf71d
rgbrgb(236, 247, 29)
hslhsl(63, 93%, 54%)
oklchoklch(0.937 0.205 113)
Closest name: Banana Flash (#eefe02)Relative luminance 0.8444
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
ecf71d281df7

#281df7

Analogous

Open in tool →
ecf71df7951d7ff71d

#f7951d · #7ff71d

Triadic

Open in tool →
ecf71d1decf7f71dec

#1decf7 · #f71dec

Split-complementary

Open in tool →
ecf71d1d7ff7951df7

#1d7ff7 · #951df7

Tetradic

Open in tool →
ecf71d1df795281df7f71d7f

#1df795 · #281df7 · #f71d7f

Contrast

#ecf71d as textRatioAAAA largeAAAFix
Aaon white
1.17:1failfailfail
  • AA: use #757b04 as the text (4.57:1)
  • AAA: use #545903 as the text (7.48:1)
  • AA: or shift the background to #6b6b6b (4.54:1)
  • AAA: or shift the background to #4d4d4d (7.2:1)
Aaon black
17.89:1passpasspassPasses 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 #ecf71d as the background.

Brands using this color

mcpConnect your agent — build around #ecf71d
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 #ecf71d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ecf71d-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