Color

#ffbb0f

#ffbb0f
hex#ffbb0f
rgbrgb(255, 187, 15)
hslhsl(43, 100%, 53%)
oklchoklch(0.833 0.17 81.7)
Closest name: Amber (#ffbf00)Relative luminance 0.5684

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0f53ff

#ff430f · #cbff0f

#0fffbb · #bb0fff

Split-complementary

Open in tool →

#0fcbff · #430fff

#0fff43 · #0f53ff · #ff0fcb

Contrast

#ffbb0f as textRatioAAAA largeAAAFix
Aaon white
1.7:1failfailfail
  • AA: use #996e00 as the text (4.58:1)
  • AAA: use #705000 as the text (7.4:1)
  • AA: or shift the background to #525252 (4.6:1)
  • AAA: or shift the background to #363636 (7.12:1)
Aaon black
12.37:1passpasspassPasses 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 #ffbb0f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#ffbb0f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ffbb0f
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 #ffbb0f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ffbb0f-c4bd9c-62b2cb-2b2d1f-f1ebe9?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