Color

#1c53ca

#1c53ca
hex#1c53ca
rgbrgb(28, 83, 202)
hslhsl(221, 76%, 45%)
oklchoklch(0.485 0.194 262.8)
Closest name: Denim (#1560bd)Relative luminance 0.107

Colors that go with #1c53ca

Charcoal, Crimson and Amber 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 →

#ca931c

#1caaca · #3c1cca

#ca1c53 · #53ca1c

Split-complementary

Open in tool →

#ca3c1c · #aaca1c

#ca1caa · #ca931c · #1cca3c

Contrast

#1c53ca as textRatioAAAA largeAAAFix
Aaon white
6.69:1passpassfail
  • AAA: use #1a4fc1 as the text (7.16:1)
Aaon black
3.14:1failpassfail
  • AA: use #3a70e4 as the text (4.62:1)
  • AAA: use #6f97eb as the text (7.3:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c53ca as the background.

Brands using this color

Fonts for this mood

#1c53ca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c53ca
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 #1c53ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c53ca-9ca4c4-df6b4e-211f2d-e9eff1?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