Color

#e5102c

#e5102c
hex#e5102c
rgbrgb(229, 16, 44)
hslhsl(352, 87%, 48%)
oklchoklch(0.585 0.232 24.4)
Closest name: Barberry (#ee1133)Relative luminance 0.1721

Colors that go with #e5102c

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 →

#10e5c8

#e51097 · #e55e10

#2ce510 · #102ce5

Split-complementary

Open in tool →

#10e55e · #1097e5

#97e510 · #10e5c8 · #5e10e5

Contrast

#e5102c as textRatioAAAA largeAAAFix
Aaon white
4.73:1passpassfail
  • AAA: use #b00c22 as the text (7.19:1)
Aaon black
4.44:1failpassfail
  • AA: use #ea102d as the text (4.61:1)
  • AAA: use #f46679 as the text (7.02:1)
  • AA: or shift the background to #fafafa (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e5102c as the background.

Brands using this color

Fonts for this mood

#e5102c reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e5102c
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 #e5102c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e5102c-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