Color

#334e8a

#334e8a
hex#334e8a
rgbrgb(51, 78, 138)
hslhsl(221, 46%, 37%)
oklchoklch(0.434 0.105 264.3)
Closest name: Assassin (#2d4f83)Relative luminance 0.0799

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a6e33

#337a8a · #43338a

#8a334e · #4e8a33

Split-complementary

Open in tool →

#8a4333 · #7a8a33

#8a337a · #8a6e33 · #338a43

Contrast

#334e8a as textRatioAAAA largeAAAFix
Aaon white
8.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.6:1failfailfail
  • AA: use #5073be as the text (4.54:1)
  • AAA: use #7d97cf as the text (7.2:1)
  • AA: or shift the background to #c2c2c2 (4.54:1)
  • AAA: or shift the background to #f0f0f0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #334e8a 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

#334e8a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #334e8a
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 #334e8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/334e8a-9ca4c4-df6b4e-211f2d-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