Color

#5b59de

#5b59de
hex#5b59de
rgbrgb(91, 89, 222)
hslhsl(241, 67%, 61%)
oklchoklch(0.543 0.197 278.2)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1464

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dcde59

#5999de · #9e59de

#de5b59 · #59de5b

Split-complementary

Open in tool →

#de9e59 · #99de59

#de5999 · #dcde59 · #59de9e

Contrast

#5b59de as textRatioAAAA largeAAAFix
Aaon white
5.35:1passpassfail
  • AAA: use #423fd9 as the text (7.13:1)
Aaon black
3.93:1failpassfail
  • AA: use #6866e1 as the text (4.58:1)
  • AAA: use #8e8ce8 as the text (7.07:1)
  • AA: or shift the background to #ededed (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b59de 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

#5b59de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b59de
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 #5b59de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b59de-a19cc4-df9b4e-261f2d-e9edf1?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