Color

#cb103c

#cb103c
hex#cb103c
rgbrgb(203, 16, 60)
hslhsl(346, 85%, 43%)
oklchoklch(0.538 0.209 18.2)
Closest name: Akari Red (#c90b42)Relative luminance 0.1339

Tints & shades

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

Harmonies

Complementary

Open in tool →

#10cb9f

#cb1099 · #cb4210

#3ccb10 · #103ccb

Split-complementary

Open in tool →

#10cb42 · #1099cb

#99cb10 · #10cb9f · #4210cb

Contrast

#cb103c as textRatioAAAA largeAAAFix
Aaon white
5.71:1passpassfail
  • AAA: use #af0e34 as the text (7.15:1)
Aaon black
3.68:1failpassfail
  • AA: use #e71344 as the text (4.57:1)
  • AAA: use #f36888 as the text (7.15:1)
  • 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 #cb103c 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

#cb103c reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cb103c
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 #cb103c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cb103c-c49ca1-62cb80-2d221f-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