Color

#1c41ca

#1c41ca
hex#1c41ca
rgbrgb(28, 65, 202)
hslhsl(227, 76%, 45%)
oklchoklch(0.452 0.215 265.6)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0829

Colors that go with #1c41ca

Charcoal, Sea Green and Steel 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 →

#caa41c

#1c99ca · #4d1cca

#ca1c41 · #41ca1c

Split-complementary

Open in tool →

#ca4d1c · #99ca1c

#ca1c99 · #caa41c · #1cca4d

Contrast

#1c41ca as textRatioAAAA largeAAAFix
Aaon white
7.9:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #4b6de7 as the text (4.64:1)
  • AAA: use #7892ed as the text (7.13:1)
  • AA: or shift the background to #c4c4c4 (4.53:1)
  • AAA: or shift the background to #f2f2f2 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c41ca as the background.

Brands using this color

Fonts for this mood

#1c41ca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c41ca
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 #1c41ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c41ca-9ca0c4-df7a4e-221f2d-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