Color

#3833cc

#3833cc
hex#3833cc
rgbrgb(56, 51, 204)
hslhsl(242, 60%, 50%)
oklchoklch(0.445 0.224 273.8)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0757

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c7cc33

#337acc · #8533cc

#cc3833 · #33cc38

Split-complementary

Open in tool →

#cc8533 · #7acc33

#cc337a · #c7cc33 · #33cc85

Contrast

#3833cc as textRatioAAAA largeAAAFix
Aaon white
8.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #6c68d9 as the text (4.62:1)
  • AAA: use #908de2 as the text (7.09:1)
  • AA: or shift the background to #bfbfbf (4.54:1)
  • AAA: or shift the background to #ebebeb (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3833cc 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

#3833cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3833cc
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 #3833cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3833cc-a29cc4-df9e4e-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