Color

#ef1f3e

#ef1f3e
hex#ef1f3e
rgbrgb(239, 31, 62)
hslhsl(351, 87%, 53%)
oklchoklch(0.611 0.233 21.7)
Closest name: Barberry (#ee1133)Relative luminance 0.1968

Colors that go with #ef1f3e

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1fefd0

#ef1fa6 · #ef681f

#3eef1f · #1f3eef

Split-complementary

Open in tool →

#1fef68 · #1fa6ef

#a6ef1f · #1fefd0 · #681fef

Contrast

#ef1f3e as textRatioAAAA largeAAAFix
Aaon white
4.25:1failpassfail
  • AA: use #ea1031 as the text (4.55:1)
  • AAA: use #b00c25 as the text (7.18:1)
  • AA: or shift the background to #0f0f0f (4.51:1)
Aaon black
4.94:1passpassfail
  • AAA: use #f4667c as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ef1f3e as the background.

Brands using this color

Fonts for this mood

#ef1f3e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ef1f3e
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 #ef1f3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef1f3e-c49c9e-62cb89-2d231f-f1e9ee?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