Color

#033dab

#033dab
hex#033dab
rgbrgb(3, 61, 171)
hslhsl(219, 97%, 34%)
oklchoklch(0.409 0.184 262)
Closest name: Blue Hour (#0034ab)Relative luminance 0.063

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ab7003

#0392ab · #1c03ab

#ab033d · #3dab03

Split-complementary

Open in tool →

#ab1c03 · #92ab03

#ab0392 · #ab7003 · #03ab1c

Contrast

#033dab as textRatioAAAA largeAAAFix
Aaon white
9.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #1d6bfc as the text (4.56:1)
  • AAA: use #5e96fd as the text (7.26:1)
  • AA: or shift the background to #b5b5b5 (4.53:1)
  • AAA: or shift the background to #e0e0e0 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #033dab as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#033dab reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #033dab
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 #033dab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/033dab-9ca5c4-df664e-211f2d-e9f0f1?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