Color

#fbe151

#fbe151
hex#fbe151
rgbrgb(251, 225, 81)
hslhsl(51, 96%, 65%)
oklchoklch(0.906 0.16 98.9)
Closest name: Angel’s Trumpet (#f6dd34)Relative luminance 0.7495

Tints & shades

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

Harmonies

Complementary

Open in tool →

#506afb

#fb8c50 · #bffb50

#50fbe2 · #e250fb

Split-complementary

Open in tool →

#50bffb · #8c50fb

#50fb8c · #506afb · #fb50bf

Contrast

#fbe151 as textRatioAAAA largeAAAFix
Aaon white
1.31:1failfailfail
  • AA: use #877303 as the text (4.68:1)
  • AAA: use #645502 as the text (7.39:1)
  • AA: or shift the background to #636363 (4.57:1)
  • AAA: or shift the background to #474747 (7.07:1)
Aaon black
15.99:1passpasspassPasses 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 #fbe151 as the background.

Brands using this color

Fonts for this mood

#fbe151 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fbe151
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 #fbe151 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fbe151-c4c29c-4eaadf-292d1f-f1ece9?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