Color

#596b91

#596b91
hex#596b91
rgbrgb(89, 107, 145)
hslhsl(221, 24%, 46%)
oklchoklch(0.529 0.064 264.7)
Closest name: Dark Prince (#6b6c89)Relative luminance 0.1468

Tints & shades

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

Harmonies

Complementary

Open in tool →

#918059

#598791 · #635991

#91596b · #6b9159

Split-complementary

Open in tool →

#916359 · #879159

#915987 · #918059 · #599163

Contrast

#596b91 as textRatioAAAA largeAAAFix
Aaon white
5.33:1passpassfail
  • AAA: use #4a5878 as the text (7.1:1)
Aaon black
3.94:1failpassfail
  • AA: use #61749e as the text (4.5:1)
  • AAA: use #8796b5 as the text (7.06:1)
  • AA: or shift the background to #ededed (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #596b91 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #596b91
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 #596b91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/596b91-9ca4c4-df6b4e-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