Color

#d90238

#d90238
hex#d90238
rgbrgb(217, 2, 56)
hslhsl(345, 98%, 43%)
oklchoklch(0.56 0.224 20.1)
Closest name: crimson (#dc143c)Relative luminance 0.1508

Colors that go with #d90238

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 →

#02d9a3

#d902a3 · #d93802

#38d902 · #0238d9

Split-complementary

Open in tool →

#02d938 · #02a3d9

#a3d902 · #02d9a3 · #3802d9

Contrast

#d90238 as textRatioAAAA largeAAAFix
Aaon white
5.23:1passpassfail
  • AAA: use #b1022e as the text (7.2:1)
Aaon black
4.02:1failpassfail
  • AA: use #e8023c as the text (4.51:1)
  • AAA: use #fd5d85 as the text (7.08:1)
  • AA: or shift the background to #f0f0f0 (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 #d90238 as the background.

Brands using this color

Fonts for this mood

#d90238 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d90238
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 #d90238 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d90238-c49ca1-62cb7e-2d221f-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