Color

#536779

#536779
hex#536779
rgbrgb(83, 103, 121)
hslhsl(208, 19%, 40%)
oklchoklch(0.504 0.038 245.8)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1292

Tints & shades

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

Harmonies

Complementary

Open in tool →

#796553

#537978 · #535479

#795367 · #677953

Split-complementary

Open in tool →

#795354 · #797853

#785379 · #796553 · #547953

Contrast

#536779 as textRatioAAAA largeAAAFix
Aaon white
5.86:1passpassfail
  • AAA: use #485a6a as the text (7.13:1)
Aaon black
3.58:1failpassfail
  • AA: use #5f778c as the text (4.5:1)
  • AAA: use #8398aa as the text (7.04:1)
  • AA: or shift the background to #e3e3e3 (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 #536779 as the background.

Brands using this color

mcpConnect your agent — build around #536779
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 #536779 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/536779-9cadc4-df4e51-1f212d-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