Color

#15009e

#15009e
hex#15009e
rgbrgb(21, 0, 158)
hslhsl(248, 100%, 31%)
oklchoklch(0.323 0.214 268.6)
Closest name: Cobalt (#030aa7)Relative luminance 0.0263

Tints & shades

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

Harmonies

Complementary

Open in tool →

#899e00

#003a9e · #64009e

#9e1500 · #009e15

Split-complementary

Open in tool →

#9e6400 · #3a9e00

#9e003a · #899e00 · #009e64

Contrast

#15009e as textRatioAAAA largeAAAFix
Aaon white
13.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #725cff as the text (4.69:1)
  • AAA: use #9585ff as the text (7.08:1)
  • AA: or shift the background to #949494 (4.54:1)
  • AAA: or shift the background to #bababa (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15009e 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

#15009e reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15009e
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 #15009e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15009e-a69cc4-dfac4e-271f2d-e9ecf1?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