Color

#355b79

#355b79
hex#355b79
rgbrgb(53, 91, 121)
hslhsl(206, 39%, 34%)
oklchoklch(0.456 0.066 243.8)
Closest name: Atlantis (#336172)Relative luminance 0.0962

Tints & shades

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

Harmonies

Complementary

Open in tool →

#795235

#357974 · #353979

#79355b · #5b7935

Split-complementary

Open in tool →

#793539 · #797435

#743579 · #795235 · #397935

Contrast

#355b79 as textRatioAAAA largeAAAFix
Aaon white
7.18:1passpasspassPasses AAA — no fix needed.
Aaon black
2.92:1failfailfail
  • AA: use #4679a0 as the text (4.5:1)
  • AAA: use #6e9cbf as the text (7.17:1)
  • AA: or shift the background to #cfcfcf (4.61:1)
  • AAA: or shift the background to #fcfcfc (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #355b79 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

#355b79 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #355b79
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 #355b79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/355b79-9caec4-df4e56-1f212d-e9f1f1?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