Color

#539ab2

#539ab2
hex#539ab2
rgbrgb(83, 154, 178)
hslhsl(195, 38%, 51%)
oklchoklch(0.649 0.08 222.3)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.2816

Colors that go with #539ab2

Charcoal, Chocolate 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.

Real palettes that use #539ab2

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b26a53

#53b29a · #536ab2

#b2539a · #9ab253

Split-complementary

Open in tool →

#b2536a · #b29a53

#9a53b2 · #b26a53 · #6ab253

Contrast

#539ab2 as textRatioAAAA largeAAAFix
Aaon white
3.17:1failpassfail
  • AA: use #417c90 as the text (4.66:1)
  • AAA: use #315e6d as the text (7.11:1)
  • AA: or shift the background to #292929 (4.6:1)
Aaon black
6.63:1passpassfail
  • AAA: use #5da0b6 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 #539ab2 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

#539ab2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #539ab2
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 #539ab2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/539ab2-9cb5c4-df4e70-1f242d-e9f1ef?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