Color

#f4fd4e

#f4fd4e
hex#f4fd4e
rgbrgb(244, 253, 78)
hslhsl(63, 98%, 65%)
oklchoklch(0.958 0.188 112.4)
Closest name: Biohazard Suit (#fbfb4c)Relative luminance 0.9003

Tints & shades

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

Harmonies

Complementary

Open in tool →

#574efd

#fdae4e · #9dfd4e

#4ef4fd · #fd4ef4

Split-complementary

Open in tool →

#4e9dfd · #ae4efd

#4efdae · #574efd · #fd4e9d

Contrast

#f4fd4e as textRatioAAAA largeAAAFix
Aaon white
1.1:1failfailfail
  • AA: use #737901 as the text (4.7:1)
  • AAA: use #565b01 as the text (7.26:1)
  • AA: or shift the background to #6e6e6e (4.61:1)
  • AAA: or shift the background to #525252 (7.07:1)
Aaon black
19.01:1passpasspassPasses 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 #f4fd4e as the background.

Brands using this color

mcpConnect your agent — build around #f4fd4e
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 #f4fd4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f4fd4e-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