Color

#f3f349

#f3f349
hex#f3f349
rgbrgb(243, 243, 73)
hslhsl(60, 88%, 62%)
oklchoklch(0.936 0.181 109.4)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.8364

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4949f3

#f39e49 · #9ef349

#49f3f3 · #f349f3

Split-complementary

Open in tool →

#499ef3 · #9e49f3

#49f39e · #4949f3 · #f3499e

Contrast

#f3f349 as textRatioAAAA largeAAAFix
Aaon white
1.18:1failfailfail
  • AA: use #787808 as the text (4.68:1)
  • AAA: use #5b5b06 as the text (7.13:1)
  • AA: or shift the background to #696969 (4.63:1)
  • AAA: or shift the background to #4d4d4d (7.14:1)
Aaon black
17.73:1passpasspassPasses 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 #f3f349 as the background.

Brands using this color

mcpConnect your agent — build around #f3f349
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 #f3f349 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f3f349-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