Color

#0523cc

#0523cc
hex#0523cc
rgbrgb(5, 35, 204)
hslhsl(231, 95%, 41%)
oklchoklch(0.406 0.248 264.6)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0559

Colors that go with #0523cc

Charcoal, Crimson and Cornflower Blue 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 →

#ccae05

#0586cc · #4b05cc

#cc0523 · #23cc05

Split-complementary

Open in tool →

#cc4b05 · #86cc05

#cc0586 · #ccae05 · #05cc4b

Contrast

#0523cc as textRatioAAAA largeAAAFix
Aaon white
9.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #4c66fa as the text (4.59:1)
  • AAA: use #7e91fc as the text (7.34:1)
  • AA: or shift the background to #b0b0b0 (4.57:1)
  • AAA: or shift the background to #d9d9d9 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0523cc 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

#0523cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0523cc
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 #0523cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0523cc-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