Color

#519a98

#519a98
hex#519a98
rgbrgb(81, 154, 152)
hslhsl(178, 31%, 46%)
oklchoklch(0.639 0.073 193.1)
Closest name: cadetblue (#5f9ea0)Relative luminance 0.2713

Colors that go with #519a98

Charcoal, Copper and Blush Pink 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 #519a98

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9a5153

#519a73 · #51789a

#97519a · #9a9751

Split-complementary

Open in tool →

#9a5178 · #9a7351

#73519a · #9a5153 · #789a51

Contrast

#519a98 as textRatioAAAA largeAAAFix
Aaon white
3.27:1failpassfail
  • AA: use #437f7d as the text (4.59:1)
  • AAA: use #315e5c as the text (7.28:1)
  • AA: or shift the background to #262626 (4.63:1)
Aaon black
6.43:1passpassfail
  • AAA: use #56a4a1 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #519a98 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #519a98
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 #519a98 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/519a98-a2bcbe-d45999-1f282d-e9f1ed?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