Color

#334d71

#334d71
hex#334d71
rgbrgb(51, 77, 113)
hslhsl(215, 38%, 32%)
oklchoklch(0.416 0.068 256.7)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.072

Tints & shades

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

Harmonies

Complementary

Open in tool →

#715733

#336b71 · #383371

#71334c · #4c7133

Split-complementary

Open in tool →

#713833 · #6b7133

#71336b · #715733 · #337138

Contrast

#334d71 as textRatioAAAA largeAAAFix
Aaon white
8.6:1passpasspassPasses AAA — no fix needed.
Aaon black
2.44:1failfailfail
  • AA: use #4f77b0 as the text (4.6:1)
  • AAA: use #7998c3 as the text (7.09:1)
  • AA: or shift the background to #bdbdbd (4.58:1)
  • AAA: or shift the background to #e8e8e8 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #334d71 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

#334d71 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #334d71
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 #334d71 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/334d71-9ca8c4-df5d4e-201f2d-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