Color

#3a4083

#3a4083
hex#3a4083
rgbrgb(58, 64, 131)
hslhsl(235, 39%, 37%)
oklchoklch(0.403 0.111 276.4)
Closest name: Evening Magic (#363e7d)Relative luminance 0.0621

Colors that go with #3a4083

Steel Blue, Blue and Cornflower Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#837d3a

#3a6483 · #583a83

#833a40 · #40833a

Split-complementary

Open in tool →

#83583a · #64833a

#833a64 · #837d3a · #3a8358

Contrast

#3a4083 as textRatioAAAA largeAAAFix
Aaon white
9.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #676ebc as the text (4.53:1)
  • AAA: use #8e93cd as the text (7.21:1)
  • AA: or shift the background to #b5b5b5 (4.57:1)
  • AAA: or shift the background to #e0e0e0 (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 #3a4083 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

#3a4083 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a4083
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3a4083 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a4083-9e9cc4-df8d4e-241f2d-e9eef1?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