Color

#37559a

#37559a
hex#37559a
rgbrgb(55, 85, 154)
hslhsl(222, 47%, 41%)
oklchoklch(0.463 0.118 264.6)
Closest name: Blue Chip (#1d5699)Relative luminance 0.0964

Colors that go with #37559a

Charcoal, Sea Green and Steel 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 →

#9a7c37

#37869a · #4b379a

#9a3755 · #559a37

Split-complementary

Open in tool →

#9a4b37 · #869a37

#9a3786 · #9a7c37 · #379a4b

Contrast

#37559a as textRatioAAAA largeAAAFix
Aaon white
7.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.93:1failfailfail
  • AA: use #5374c1 as the text (4.64:1)
  • AAA: use #7c95d0 as the text (7.07:1)
  • AA: or shift the background to #cfcfcf (4.6:1)
  • AAA: or shift the background to #ffffff (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37559a 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

#37559a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37559a
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 #37559a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37559a-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