Color

#f31259

#f31259
hex#f31259
rgbrgb(243, 18, 89)
hslhsl(341, 90%, 51%)
oklchoklch(0.618 0.241 13.5)
Closest name: Borderline Pink (#ee1166)Relative luminance 0.2021

Tints & shades

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

Harmonies

Complementary

Open in tool →

#12f3ab

#f312c9 · #f33b12

#59f312 · #1259f3

Split-complementary

Open in tool →

#12f33b · #12c9f3

#c9f312 · #12f3ab · #3b12f3

Contrast

#f31259 as textRatioAAAA largeAAAFix
Aaon white
4.17:1failpassfail
  • AA: use #e90c52 as the text (4.53:1)
  • AAA: use #ae093e as the text (7.22:1)
  • AA: or shift the background to #0f0f0f (4.6:1)
Aaon black
5.04:1passpassfail
  • AAA: use #f76492 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f31259 as the background.

Brands using this color

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

Fonts for this mood

#f31259 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f31259
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 #f31259 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f31259-c49ca4-62cb77-2d211f-f1e9ef?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