Color

#586ff3

#586ff3
hex#586ff3
rgbrgb(88, 111, 243)
hslhsl(231, 87%, 65%)
oklchoklch(0.596 0.198 271.6)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.1991

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f3dc58

#58bdf3 · #8e58f3

#f3586f · #6ff358

Split-complementary

Open in tool →

#f38e58 · #bdf358

#f358bd · #f3dc58 · #58f38e

Contrast

#586ff3 as textRatioAAAA largeAAAFix
Aaon white
4.21:1failpassfail
  • AA: use #4f67f3 as the text (4.6:1)
  • AAA: use #1f3eef as the text (7.01:1)
  • AA: or shift the background to #0f0f0f (4.55:1)
Aaon black
4.98:1passpassfail
  • AAA: use #7e90f6 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 #586ff3 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

#586ff3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #586ff3
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 #586ff3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/586ff3-9c9ec4-df834e-231f2d-e9eef1?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