Color

#e01530

#e01530
hex#e01530
rgbrgb(224, 21, 48)
hslhsl(352, 83%, 48%)
oklchoklch(0.577 0.226 23.6)
Closest name: crimson (#dc143c)Relative luminance 0.166

Colors that go with #e01530

Charcoal, Royal 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 →

#15e0c5

#e01595 · #e05f15

#30e015 · #1530e0

Split-complementary

Open in tool →

#15e05f · #1595e0

#95e015 · #15e0c5 · #5f15e0

Contrast

#e01530 as textRatioAAAA largeAAAFix
Aaon white
4.86:1passpassfail
  • AAA: use #b11026 as the text (7.07:1)
Aaon black
4.32:1failpassfail
  • AA: use #e91632 as the text (4.63:1)
  • AAA: use #f16a7c as the text (7.09:1)
  • AA: or shift the background to #f7f7f7 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e01530 as the background.

Brands using this color

Fonts for this mood

#e01530 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e01530
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 #e01530 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e01530-c49c9d-62cb8a-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