Color

#355d8d

#355d8d
hex#355d8d
rgbrgb(53, 93, 141)
hslhsl(213, 45%, 38%)
oklchoklch(0.472 0.091 254)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1051

Colors that go with #355d8d

Charcoal, Sea Green and Amber 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 →

#8d6535

#35888d · #3a358d

#8d355d · #5d8d35

Split-complementary

Open in tool →

#8d3a35 · #888d35

#8d3588 · #8d6535 · #358d3a

Contrast

#355d8d as textRatioAAAA largeAAAFix
Aaon white
6.77:1passpassfail
  • AAA: use #345a89 as the text (7.07:1)
Aaon black
3.1:1failpassfail
  • AA: use #4577b5 as the text (4.56:1)
  • AAA: use #729aca as the text (7.19:1)
  • AA: or shift the background to #d4d4d4 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #355d8d as the background.

Brands using this color

Fonts for this mood

#355d8d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #355d8d
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 #355d8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/355d8d-9ca9c4-df584e-1f202d-e9f0f1?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