Color

#1855cd

#1855cd
hex#1855cd
rgbrgb(24, 85, 205)
hslhsl(220, 79%, 45%)
oklchoklch(0.49 0.196 262)
Closest name: Denim (#1560bd)Relative luminance 0.111

Colors that go with #1855cd

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 →

#cd9118

#18afcd · #3618cd

#cd1855 · #55cd18

Split-complementary

Open in tool →

#cd3618 · #afcd18

#cd18af · #cd9118 · #18cd36

Contrast

#1855cd as textRatioAAAA largeAAAFix
Aaon white
6.52:1passpassfail
  • AAA: use #164fc0 as the text (7.21:1)
Aaon black
3.22:1failpassfail
  • AA: use #326ee7 as the text (4.52:1)
  • AAA: use #6895ed as the text (7.11:1)
  • AA: or shift the background to #d9d9d9 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1855cd as the background.

Brands using this color

Fonts for this mood

#1855cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1855cd
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 #1855cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1855cd-9ca5c4-df694e-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