brandsweets

Color

#f3fa38

#f3fa38
hex#f3fa38
rgbrgb(243, 250, 56)
hslhsl(62, 95%, 60%)
oklchoklch(0.949 0.197 111.8)
Closest name: Banana Bandanna (#f8f739)Relative luminance 0.8771
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
f3fa383f38fa

#3f38fa

Analogous

Open in tool →
f3fa38fa9f3893fa38

#fa9f38 · #93fa38

Triadic

Open in tool →
f3fa3838f3fafa38f3

#38f3fa · #fa38f3

Split-complementary

Open in tool →
f3fa383893fa9f38fa

#3893fa · #9f38fa

Tetradic

Open in tool →
f3fa3838fa9f3f38fafa3893

#38fa9f · #3f38fa · #fa3893

Contrast

#f3fa38 as textRatioAAAA largeAAAFix
Aaon white
1.13:1failfailfail
  • AA: use #737703 as the text (4.81:1)
  • AAA: use #575a02 as the text (7.32:1)
  • AA: or shift the background to #6e6e6e (4.5:1)
  • AAA: or shift the background to #4f4f4f (7.23:1)
Aaon black
18.54:1passpasspassPasses 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 #f3fa38 as the background.

Brands using this color

mcpConnect your agent — build around #f3fa38
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 #f3fa38 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f3fa38-babea2-4e8fdf-272d1f-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