Color

#509aaf

#509aaf
hex#509aaf
rgbrgb(80, 154, 175)
hslhsl(193, 37%, 50%)
oklchoklch(0.647 0.08 218.6)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.2791

Colors that go with #509aaf

Charcoal, Copper and Terracotta 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 #509aaf

Tints & shades

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

Harmonies

Complementary

Open in tool →

#af6550

#50af94 · #506baf

#af509a · #9aaf50

Split-complementary

Open in tool →

#af506b · #af9450

#9450af · #af6550 · #6baf50

Contrast

#509aaf as textRatioAAAA largeAAAFix
Aaon white
3.19:1failpassfail
  • AA: use #427e8f as the text (4.55:1)
  • AAA: use #305d69 as the text (7.25:1)
  • AA: or shift the background to #292929 (4.56:1)
Aaon black
6.58:1passpassfail
  • AAA: use #5ba0b3 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #509aaf 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

#509aaf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #509aaf
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 #509aaf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509aaf-a2b5be-df4e75-1f242d-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