Color

#536ef3

#536ef3
hex#536ef3
rgbrgb(83, 110, 243)
hslhsl(230, 87%, 64%)
oklchoklch(0.592 0.201 270.4)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.1946

Colors that go with #536ef3

Charcoal, Crimson and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f3d853

#53bef3 · #8953f3

#f3536e · #6ef353

Split-complementary

Open in tool →

#f38953 · #bef353

#f353be · #f3d853 · #53f389

Contrast

#536ef3 as textRatioAAAA largeAAAFix
Aaon white
4.29:1failpassfail
  • AA: use #4a66f2 as the text (4.69:1)
  • AAA: use #1a3eef as the text (7.05:1)
  • AA: or shift the background to #0d0d0d (4.53:1)
Aaon black
4.89:1passpassfail
  • AAA: use #798ef6 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #536ef3 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

#536ef3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #536ef3
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #536ef3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/536ef3-9c9ec4-df814e-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