Color

#5172db

#5172db
hex#5172db
rgbrgb(81, 114, 219)
hslhsl(226, 66%, 59%)
oklchoklch(0.581 0.164 267.9)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.189

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dbbb51

#51b7db · #7651db

#db5172 · #72db51

Split-complementary

Open in tool →

#db7651 · #b7db51

#db51b7 · #dbbb51 · #51db76

Contrast

#5172db as textRatioAAAA largeAAAFix
Aaon white
4.39:1failpassfail
  • AA: use #4d6edb as the text (4.6:1)
  • AAA: use #284cc3 as the text (7.21:1)
  • AA: or shift the background to #0a0a0a (4.51:1)
Aaon black
4.78:1passpassfail
  • AAA: use #7c94e4 as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5172db 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

#5172db reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5172db
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 #5172db and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5172db-9ca1c4-df774e-221f2d-e9eff1?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