Color

#598ccf

#598ccf
hex#598ccf
rgbrgb(89, 140, 207)
hslhsl(214, 55%, 58%)
oklchoklch(0.634 0.116 255.7)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2539

Colors that go with #598ccf

Charcoal, Copper 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 →

#cf9c59

#59c7cf · #6159cf

#cf598c · #8ccf59

Split-complementary

Open in tool →

#cf6159 · #c7cf59

#cf59c7 · #cf9c59 · #59cf61

Contrast

#598ccf as textRatioAAAA largeAAAFix
Aaon white
3.46:1failpassfail
  • AA: use #3976c6 as the text (4.58:1)
  • AAA: use #2a5792 as the text (7.3:1)
  • AA: or shift the background to #212121 (4.66:1)
Aaon black
6.08:1passpassfail
  • AAA: use #6d9ad5 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #598ccf as the background.

Brands using this color

Fonts for this mood

#598ccf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #598ccf
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 #598ccf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/598ccf-9ca9c4-df5a4e-1f1f2d-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