brandsweets

Color

#f3f312

#f3f312
hex#f3f312
rgbrgb(243, 243, 18)
hslhsl(60, 90%, 51%)
oklchoklch(0.933 0.201 109.7)
Closest name: Banana Bandanna (#f8f739)Relative luminance 0.832
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
f3f3121212f3

#1212f3

Analogous

Open in tool →
f3f312f3821282f312

#f38212 · #82f312

Triadic

Open in tool →
f3f31212f3f3f312f3

#12f3f3 · #f312f3

Split-complementary

Open in tool →
f3f3121282f38212f3

#1282f3 · #8212f3

Tetradic

Open in tool →
f3f31212f3821212f3f31282

#12f382 · #1212f3 · #f31282

Contrast

#f3f312 as textRatioAAAA largeAAAFix
Aaon white
1.19:1failfailfail
  • AA: use #797906 as the text (4.61:1)
  • AAA: use #5c5c05 as the text (7.03:1)
  • AA: or shift the background to #696969 (4.61:1)
  • AAA: or shift the background to #4d4d4d (7.1:1)
Aaon black
17.64:1passpasspassPasses 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 #f3f312 as the background.

Brands using this color

mcpConnect your agent — build around #f3f312
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 #f3f312 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f3f312-bbbea2-4e94df-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