Color

#536dfd

#536dfd
hex#536dfd
rgbrgb(83, 109, 253)
hslhsl(231, 98%, 66%)
oklchoklch(0.597 0.215 270.7)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.1987

Colors that go with #536dfd

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 →

#fde453

#53c2fd · #8f53fd

#fd536d · #6dfd53

Split-complementary

Open in tool →

#fd8f53 · #c2fd53

#fd53c2 · #fde453 · #53fd8f

Contrast

#536dfd as textRatioAAAA largeAAAFix
Aaon white
4.22:1failpassfail
  • AA: use #4964fd as the text (4.64:1)
  • AAA: use #1235fd as the text (7.11:1)
  • AA: or shift the background to #0f0f0f (4.54:1)
Aaon black
4.97:1passpassfail
  • AAA: use #7c8ffe 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 #536dfd 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

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

mcpConnect your agent — build around #536dfd
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 #536dfd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/536dfd-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