Color

#538bac

#538bac
hex#538bac
rgbrgb(83, 139, 172)
hslhsl(202, 35%, 50%)
oklchoklch(0.611 0.078 235.8)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2328

Colors that go with #538bac

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 →

#ac7453

#53aca0 · #535fac

#ac538b · #8bac53

Split-complementary

Open in tool →

#ac535f · #aca053

#a053ac · #ac7453 · #5fac53

Contrast

#538bac as textRatioAAAA largeAAAFix
Aaon white
3.71:1failpassfail
  • AA: use #497b97 as the text (4.6:1)
  • AAA: use #375c72 as the text (7.15:1)
  • AA: or shift the background to #1c1c1c (4.59:1)
Aaon black
5.66:1passpassfail
  • AAA: use #6b9cb8 as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #538bac 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

#538bac reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #538bac
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 #538bac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/538bac-9cb1c4-df4e5f-1f222d-e9f1f0?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