Color

#5b83cd

#5b83cd
hex#5b83cd
rgbrgb(91, 131, 205)
hslhsl(219, 53%, 58%)
oklchoklch(0.614 0.121 261.9)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2286

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cda55b

#5bbccd · #6c5bcd

#cd5b83 · #83cd5b

Split-complementary

Open in tool →

#cd6c5b · #bccd5b

#cd5bbc · #cda55b · #5bcd6c

Contrast

#5b83cd as textRatioAAAA largeAAAFix
Aaon white
3.77:1failpassfail
  • AA: use #4874c7 as the text (4.57:1)
  • AAA: use #30569c as the text (7.15:1)
  • AA: or shift the background to #1c1c1c (4.52:1)
Aaon black
5.57:1passpassfail
  • AAA: use #7698d5 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b83cd 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

#5b83cd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b83cd
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 #5b83cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b83cd-9ca5c4-df664e-211f2d-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