Color

#5787ef

#5787ef
hex#5787ef
rgbrgb(87, 135, 239)
hslhsl(221, 83%, 64%)
oklchoklch(0.64 0.164 263.7)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2559

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efbf57

#57d3ef · #7357ef

#ef5787 · #87ef57

Split-complementary

Open in tool →

#ef7357 · #d3ef57

#ef57d3 · #efbf57 · #57ef73

Contrast

#5787ef as textRatioAAAA largeAAAFix
Aaon white
3.43:1failpassfail
  • AA: use #326dec as the text (4.63:1)
  • AAA: use #134ecd as the text (7:1)
  • AA: or shift the background to #242424 (4.52:1)
Aaon black
6.12:1passpassfail
  • AAA: use #6a95f1 as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5787ef 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

#5787ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5787ef
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 #5787ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5787ef-9ca4c4-df6b4e-211f2d-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