Color

#334166

#334166
hex#334166
rgbrgb(51, 65, 102)
hslhsl(224, 33%, 30%)
oklchoklch(0.381 0.066 267.5)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0544

Tints & shades

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

Harmonies

Complementary

Open in tool →

#665833

#335a66 · #3f3366

#663341 · #416633

Split-complementary

Open in tool →

#663f33 · #5a6633

#66335a · #665833 · #33663f

Contrast

#334166 as textRatioAAAA largeAAAFix
Aaon white
10.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #6075af as the text (4.66:1)
  • AAA: use #8595c1 as the text (7.07:1)
  • AA: or shift the background to #b0b0b0 (4.64:1)
  • AAA: or shift the background to #d9d9d9 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #334166 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

#334166 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #334166
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 #334166 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/334166-9ca2c4-df724e-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