Color

#d90243

#d90243
hex#d90243
rgbrgb(217, 2, 67)
hslhsl(342, 98%, 43%)
oklchoklch(0.562 0.224 16.8)
Closest name: crimson (#dc143c)Relative luminance 0.152

Colors that go with #d90243

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 →

#02d999

#d902ae · #d92d02

#43d902 · #0243d9

Split-complementary

Open in tool →

#02d92d · #02aed9

#aed902 · #02d999 · #2d02d9

Contrast

#d90243 as textRatioAAAA largeAAAFix
Aaon white
5.2:1passpassfail
  • AAA: use #b10236 as the text (7.16:1)
Aaon black
4.04:1failpassfail
  • AA: use #e80247 as the text (4.53:1)
  • AAA: use #fd5d8d as the text (7.13:1)
  • AA: or shift the background to #f0f0f0 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d90243 as the background.

Brands using this color

Fonts for this mood

#d90243 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d90243
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 #d90243 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d90243-c49ca3-62cb79-2d211f-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