Color

#e30d38

#e30d38
hex#e30d38
rgbrgb(227, 13, 56)
hslhsl(348, 89%, 47%)
oklchoklch(0.582 0.23 21.3)
Closest name: crimson (#dc143c)Relative luminance 0.169

Colors that go with #e30d38

Charcoal, Royal Blue and Sea Green 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 →

#0de3b8

#e30da3 · #e34d0d

#38e30d · #0d38e3

Split-complementary

Open in tool →

#0de34d · #0da3e3

#a3e30d · #0de3b8 · #4d0de3

Contrast

#e30d38 as textRatioAAAA largeAAAFix
Aaon white
4.79:1passpassfail
  • AAA: use #b20a2c as the text (7.06:1)
Aaon black
4.38:1failpassfail
  • AA: use #e70d39 as the text (4.51:1)
  • AAA: use #f66582 as the text (7.1:1)
  • AA: or shift the background to #fafafa (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e30d38 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#e30d38 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e30d38
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 #e30d38 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e30d38-c49c9f-62cb83-2d231f-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