Color

#334da3

#334da3
hex#334da3
rgbrgb(51, 77, 163)
hslhsl(226, 52%, 42%)
oklchoklch(0.45 0.142 267.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0866

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a38933

#3385a3 · #5133a3

#a3334d · #4da333

Split-complementary

Open in tool →

#a35133 · #85a333

#a33385 · #a38933 · #33a351

Contrast

#334da3 as textRatioAAAA largeAAAFix
Aaon white
7.69:1passpasspassPasses AAA — no fix needed.
Aaon black
2.73:1failfailfail
  • AA: use #5470c9 as the text (4.54:1)
  • AAA: use #7f94d7 as the text (7.12:1)
  • AA: or shift the background to #c7c7c7 (4.55:1)
  • AAA: or shift the background to #f5f5f5 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #334da3 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

#334da3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #334da3
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 #334da3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/334da3-9ca1c4-df774e-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