Color

#528fe5

#528fe5
hex#528fe5
rgbrgb(82, 143, 229)
hslhsl(215, 74%, 61%)
oklchoklch(0.649 0.144 257.3)
Closest name: Blue Jay (#5588dd)Relative luminance 0.271

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e5a852

#52d9e5 · #5e52e5

#e5528f · #8fe552

Split-complementary

Open in tool →

#e55e52 · #d9e552

#e552d9 · #e5a852 · #52e55e

Contrast

#528fe5 as textRatioAAAA largeAAAFix
Aaon white
3.27:1failpassfail
  • AA: use #2673df as the text (4.56:1)
  • AAA: use #1955a9 as the text (7.21:1)
  • AA: or shift the background to #262626 (4.63:1)
Aaon black
6.42:1passpassfail
  • AAA: use #5f98e7 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #528fe5 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

#528fe5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #528fe5
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 #528fe5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/528fe5-9ca8c4-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