Color

#e7150d

#e7150d
hex#e7150d
rgbrgb(231, 21, 13)
hslhsl(2, 89%, 48%)
oklchoklch(0.588 0.234 29.3)
Closest name: Alarm (#ec0003)Relative luminance 0.1755

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#0de0e7

#e70d73 · #e7820d

#0de715 · #150de7

Split-complementary

Open in tool →

#0de782 · #0d73e7

#73e70d · #0de0e7 · #820de7

Contrast

#e7150d as textRatioAAAA largeAAAFix
Aaon white
4.66:1passpassfail
  • AAA: use #b2100a as the text (7.07:1)
Aaon black
4.51:1passpassfail
  • AAA: use #f66a65 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e7150d as the background.

Brands using this color

Fonts for this mood

#e7150d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e7150d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #e7150d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e7150d-c4a29c-62cb9c-2d261f-f1e9ed?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