Color

#333dcc

#333dcc
hex#333dcc
rgbrgb(51, 61, 204)
hslhsl(236, 60%, 50%)
oklchoklch(0.456 0.216 271.2)
Closest name: Denim (#2243b6)Relative luminance 0.084

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ccc233

#338acc · #7533cc

#cc333d · #3dcc33

Split-complementary

Open in tool →

#cc7533 · #8acc33

#cc338a · #ccc233 · #33cc75

Contrast

#333dcc as textRatioAAAA largeAAAFix
Aaon white
7.84:1passpasspassPasses AAA — no fix needed.
Aaon black
2.68:1failfailfail
  • AA: use #646cd8 as the text (4.68:1)
  • AAA: use #898fe1 as the text (7.08:1)
  • AA: or shift the background to #c7c7c7 (4.63:1)
  • AAA: or shift the background to #f5f5f5 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #333dcc 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

#333dcc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #333dcc
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 #333dcc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/333dcc-9e9cc4-df8f4e-241f2d-e9eef1?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