Color

#1836fb

#1836fb
hex#1836fb
rgbrgb(24, 54, 251)
hslhsl(232, 97%, 54%)
oklchoklch(0.487 0.282 265.7)
Closest name: C64 Blue (#003aff)Relative luminance 0.098

Colors that go with #1836fb

Charcoal, Crimson and Cobalt 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 →

#fbdd18

#18a8fb · #6b18fb

#fb1836 · #36fb18

Split-complementary

Open in tool →

#fb6b18 · #a8fb18

#fb18a8 · #fbdd18 · #18fb6b

Contrast

#1836fb as textRatioAAAA largeAAAFix
Aaon white
7.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.96:1failfailfail
  • AA: use #4f66fc as the text (4.64:1)
  • AAA: use #7c8efd as the text (7.14:1)
  • AA: or shift the background to #cfcfcf (4.55:1)
  • AAA: or shift the background to #ffffff (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1836fb as the background.

Brands using this color

Fonts for this mood

#1836fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1836fb
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 #1836fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1836fb-9c9dc4-df864e-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