Color

#f6ff4d

#f6ff4d
hex#f6ff4d
rgbrgb(246, 255, 77)
hslhsl(63, 100%, 65%)
oklchoklch(0.963 0.19 112.3)
Closest name: Biohazard Suit (#fbfb4c)Relative luminance 0.9165

Tints & shades

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

Harmonies

Complementary

Open in tool →

#554dff

#ffaf4d · #9dff4d

#4df6ff · #ff4df6

Split-complementary

Open in tool →

#4d9dff · #af4dff

#4dffaf · #554dff · #ff4d9d

Contrast

#f6ff4d as textRatioAAAA largeAAAFix
Aaon white
1.09:1failfailfail
  • AA: use #747a00 as the text (4.64:1)
  • AAA: use #575c00 as the text (7.15:1)
  • AA: or shift the background to #707070 (4.56:1)
  • AAA: or shift the background to #525252 (7.19:1)
Aaon black
19.33:1passpasspassPasses 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 #f6ff4d as the background.

Brands using this color

mcpConnect your agent — build around #f6ff4d
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 #f6ff4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f6ff4d-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