Color

#1815ac

#1815ac
hex#1815ac
rgbrgb(24, 21, 172)
hslhsl(241, 78%, 38%)
oklchoklch(0.357 0.219 268.4)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0371

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aaac15

#155eac · #6315ac

#ac1815 · #15ac18

Split-complementary

Open in tool →

#ac6315 · #5eac15

#ac155e · #aaac15 · #15ac63

Contrast

#1815ac as textRatioAAAA largeAAAFix
Aaon white
12.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #6765ec as the text (4.65:1)
  • AAA: use #8f8ef1 as the text (7.31:1)
  • AA: or shift the background to #9e9e9e (4.5:1)
  • AAA: or shift the background to #c7c7c7 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1815ac 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

#1815ac reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1815ac
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 #1815ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1815ac-a19cc4-df9b4e-261f2d-e9edf1?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