Color

#5988cf

#5988cf
hex#5988cf
rgbrgb(89, 136, 207)
hslhsl(216, 55%, 58%)
oklchoklch(0.625 0.12 258.4)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2424

Colors that go with #5988cf

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 →

#cfa059

#59c3cf · #6559cf

#cf5988 · #88cf59

Split-complementary

Open in tool →

#cf6559 · #c3cf59

#cf59c3 · #cfa059 · #59cf65

Contrast

#5988cf as textRatioAAAA largeAAAFix
Aaon white
3.59:1failpassfail
  • AA: use #3d74c7 as the text (4.64:1)
  • AAA: use #2c5696 as the text (7.3:1)
  • AA: or shift the background to #1f1f1f (4.59:1)
Aaon black
5.85:1passpassfail
  • AAA: use #7199d6 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 #5988cf as the background.

Brands using this color

Fonts for this mood

#5988cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5988cf
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 #5988cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5988cf-9ca7c4-df5f4e-201f2d-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