Color

#2819cc

#2819cc
hex#2819cc
rgbrgb(40, 25, 204)
hslhsl(245, 78%, 45%)
oklchoklch(0.408 0.248 270.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0551

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bdcc19

#1964cc · #8219cc

#cc2819 · #19cc28

Split-complementary

Open in tool →

#cc8219 · #64cc19

#cc1964 · #bdcc19 · #19cc82

Contrast

#2819cc as textRatioAAAA largeAAAFix
Aaon white
9.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #6c60eb as the text (4.51:1)
  • AAA: use #9289f0 as the text (7.06:1)
  • AA: or shift the background to #b0b0b0 (4.61:1)
  • AAA: or shift the background to #d9d9d9 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2819cc 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

#2819cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2819cc
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 #2819cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2819cc-a49cc4-dfa54e-261f2d-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