Color

#0033cc

#0033cc
hex#0033cc
rgbrgb(0, 51, 204)
hslhsl(225, 100%, 40%)
oklchoklch(0.426 0.235 263.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0673

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cc9900

#0099cc · #3300cc

#cc0033 · #33cc00

Split-complementary

Open in tool →

#cc3300 · #99cc00

#cc0099 · #cc9900 · #00cc33

Contrast

#0033cc as textRatioAAAA largeAAAFix
Aaon white
8.95:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #386aff as the text (4.67:1)
  • AAA: use #6b90ff as the text (7.06:1)
  • AA: or shift the background to #b8b8b8 (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0033cc 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

#0033cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0033cc
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 #0033cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0033cc-9ca1c4-df754e-221f2d-e9eff1?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