Color

#ef1f5a

#ef1f5a
hex#ef1f5a
rgbrgb(239, 31, 90)
hslhsl(343, 87%, 53%)
oklchoklch(0.615 0.233 13.5)
Closest name: Bat’s Blood Soup (#ee3366)Relative luminance 0.2007

Colors that go with #ef1f5a

Charcoal, Dodger Blue and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #ef1f5a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1fefb4

#ef1fc2 · #ef4c1f

#5aef1f · #1f5aef

Split-complementary

Open in tool →

#1fef4c · #1fc2ef

#c2ef1f · #1fefb4 · #4c1fef

Contrast

#ef1f5a as textRatioAAAA largeAAAFix
Aaon white
4.19:1failpassfail
  • AA: use #e5104c as the text (4.66:1)
  • AAA: use #b00c3b as the text (7.09:1)
  • AA: or shift the background to #0f0f0f (4.58:1)
Aaon black
5.01:1passpassfail
  • AAA: use #f4668f as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ef1f5a 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

#ef1f5a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ef1f5a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #ef1f5a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef1f5a-c49ca3-62cb7b-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