Color

#eefb3c

#eefb3c
hex#eefb3c
rgbrgb(238, 251, 60)
hslhsl(64, 96%, 61%)
oklchoklch(0.948 0.197 113.6)
Closest name: Banana Bandanna (#f8f739)Relative luminance 0.875

Tints & shades

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

Harmonies

Complementary

Open in tool →

#493cfb

#fba83c · #8ffb3c

#3ceefb · #fb3cee

Split-complementary

Open in tool →

#3c8ffb · #a83cfb

#3cfba8 · #493cfb · #fb3c8f

Contrast

#eefb3c as textRatioAAAA largeAAAFix
Aaon white
1.14:1failfailfail
  • AA: use #707802 as the text (4.8:1)
  • AAA: use #545a02 as the text (7.39:1)
  • AA: or shift the background to #6b6b6b (4.69:1)
  • AAA: or shift the background to #4f4f4f (7.22:1)
Aaon black
18.5:1passpasspassPasses 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 #eefb3c as the background.

Brands using this color

mcpConnect your agent — build around #eefb3c
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 #eefb3c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eefb3c-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