Color

#333b94

#333b94
hex#333b94
rgbrgb(51, 59, 148)
hslhsl(235, 49%, 39%)
oklchoklch(0.401 0.145 274)
Closest name: Bluebell (#333399)Relative luminance 0.0597

Colors that go with #333b94

Charcoal, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#948c33

#336c94 · #5b3394

#94333b · #3b9433

Split-complementary

Open in tool →

#945b33 · #6c9433

#94336c · #948c33 · #33945b

Contrast

#333b94 as textRatioAAAA largeAAAFix
Aaon white
9.57:1passpasspassPasses AAA — no fix needed.
Aaon black
2.19:1failfailfail
  • AA: use #636cca as the text (4.53:1)
  • AAA: use #8990d7 as the text (7.03:1)
  • AA: or shift the background to #b3b3b3 (4.57:1)
  • AAA: or shift the background to #dedede (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #333b94 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

#333b94 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #333b94
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #333b94 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/333b94-9e9cc4-df8d4e-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