Color

#517ebd

#517ebd
hex#517ebd
rgbrgb(81, 126, 189)
hslhsl(215, 45%, 53%)
oklchoklch(0.589 0.109 257)
Closest name: steelblue (#4682b4)Relative luminance 0.2035

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bd9051

#51b4bd · #5a51bd

#bd517e · #7ebd51

Split-complementary

Open in tool →

#bd5a51 · #b4bd51

#bd51b4 · #bd9051 · #51bd5a

Contrast

#517ebd as textRatioAAAA largeAAAFix
Aaon white
4.14:1failpassfail
  • AA: use #4676b9 as the text (4.61:1)
  • AAA: use #355a8d as the text (7:1)
  • AA: or shift the background to #121212 (4.52:1)
Aaon black
5.07:1passpassfail
  • AAA: use #769acb as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #517ebd 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

#517ebd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #517ebd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #517ebd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/517ebd-9ca8c4-df5d4e-201f2d-e9f0f1?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