Color

#d5013a

#d5013a
hex#d5013a
rgbrgb(213, 1, 58)
hslhsl(344, 99%, 42%)
oklchoklch(0.553 0.221 19.1)
Closest name: crimson (#dc143c)Relative luminance 0.1447

Colors that go with #d5013a

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 →

#01d59d

#d501a4 · #d53301

#3ad501 · #013ad5

Split-complementary

Open in tool →

#01d533 · #01a4d5

#a4d501 · #01d59d · #3301d5

Contrast

#d5013a as textRatioAAAA largeAAAFix
Aaon white
5.39:1passpassfail
  • AAA: use #b20130 as the text (7.14:1)
Aaon black
3.89:1failpassfail
  • AA: use #e9013f as the text (4.54:1)
  • AAA: use #fe5d88 as the text (7.14:1)
  • AA: or shift the background to #ebebeb (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d5013a as the background.

Brands using this color

Fonts for this mood

#d5013a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d5013a
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 #d5013a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d5013a-c49ca2-62cb7c-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