Color

#cb103f

#cb103f
hex#cb103f
rgbrgb(203, 16, 63)
hslhsl(345, 85%, 43%)
oklchoklch(0.539 0.209 17.2)
Closest name: Akari Red (#c90b42)Relative luminance 0.1343

Tints & shades

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

Harmonies

Complementary

Open in tool →

#10cb9c

#cb109c · #cb3f10

#3fcb10 · #103fcb

Split-complementary

Open in tool →

#10cb3f · #109ccb

#9ccb10 · #10cb9c · #3f10cb

Contrast

#cb103f as textRatioAAAA largeAAAFix
Aaon white
5.7:1passpassfail
  • AAA: use #af0e36 as the text (7.15:1)
Aaon black
3.69:1failpassfail
  • AA: use #e71348 as the text (4.58:1)
  • AAA: use #f3688b as the text (7.16:1)
  • AA: or shift the background to #e6e6e6 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #cb103f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#cb103f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cb103f
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 #cb103f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cb103f-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