Color

#5783b2

#5783b2
hex#5783b2
rgbrgb(87, 131, 178)
hslhsl(211, 37%, 52%)
oklchoklch(0.598 0.087 251)
Closest name: steelblue (#4682b4)Relative luminance 0.2147

Colors that go with #5783b2

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 →

#b28657

#57b0b2 · #5957b2

#b25783 · #83b257

Split-complementary

Open in tool →

#b25957 · #b0b257

#b257b0 · #b28657 · #57b259

Contrast

#5783b2 as textRatioAAAA largeAAAFix
Aaon white
3.97:1failpassfail
  • AA: use #4d79a8 as the text (4.55:1)
  • AAA: use #3a5b7e as the text (7.05:1)
  • AA: or shift the background to #171717 (4.52:1)
Aaon black
5.29:1passpassfail
  • AAA: use #779ac0 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5783b2 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

#5783b2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5783b2
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 #5783b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5783b2-9cabc4-df534e-1f202d-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