Color

#3d548a

#3d548a
hex#3d548a
rgbrgb(61, 84, 138)
hslhsl(222, 39%, 39%)
oklchoklch(0.454 0.093 265.4)
Closest name: Dusk (#4e5481)Relative luminance 0.0917

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a733d

#3d7b8a · #4c3d8a

#8a3d54 · #548a3d

Split-complementary

Open in tool →

#8a4c3d · #7b8a3d

#8a3d7b · #8a733d · #3d8a4c

Contrast

#3d548a as textRatioAAAA largeAAAFix
Aaon white
7.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.83:1failfailfail
  • AA: use #5874b6 as the text (4.59:1)
  • AAA: use #7f95c7 as the text (7.03:1)
  • AA: or shift the background to #cccccc (4.61:1)
  • AAA: or shift the background to #fafafa (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d548a 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

#3d548a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d548a
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 #3d548a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d548a-9ca3c4-df6e4e-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