brandsweets

Color

#fcff42

#fcff42
hex#fcff42
rgbrgb(252, 255, 66)
hslhsl(61, 100%, 63%)
oklchoklch(0.967 0.195 110.5)
Closest name: Bee Yellow (#feff32)Relative luminance 0.9261
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
fcff424542ff

#4542ff

Analogous

Open in tool →
fcff42ffa4429eff42

#ffa442 · #9eff42

Triadic

Open in tool →
fcff4242fcffff42fc

#42fcff · #ff42fc

Split-complementary

Open in tool →
fcff42429effa442ff

#429eff · #a442ff

Tetradic

Open in tool →
fcff4242ffa44542ffff429e

#42ffa4 · #4542ff · #ff429e

Contrast

#fcff42 as textRatioAAAA largeAAAFix
Aaon white
1.08:1failfailfail
  • AA: use #787a00 as the text (4.58:1)
  • AAA: use #5a5c00 as the text (7.08:1)
  • AA: or shift the background to #707070 (4.6:1)
  • AAA: or shift the background to #545454 (7.04:1)
Aaon black
19.52:1passpasspassPasses 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 #fcff42 as the background.

Brands using this color

mcpConnect your agent — build around #fcff42
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 #fcff42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fcff42-babea2-4e92df-272d1f-f1ede9?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