Color

#2156f2

#2156f2
hex#2156f2
rgbrgb(33, 86, 242)
hslhsl(225, 89%, 54%)
oklchoklch(0.527 0.239 264.6)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1339

Colors that go with #2156f2

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 →

#f2be21

#21bef2 · #5621f2

#f22156 · #56f221

Split-complementary

Open in tool →

#f25621 · #bef221

#f221be · #f2be21 · #21f256

Contrast

#2156f2 as textRatioAAAA largeAAAFix
Aaon white
5.71:1passpassfail
Aaon black
3.68:1failpassfail
  • AA: use #3e6cf4 as the text (4.66:1)
  • AAA: use #7394f7 as the text (7.31:1)
  • AA: or shift the background to #e6e6e6 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2156f2 as the background.

Brands using this color

Fonts for this mood

#2156f2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2156f2
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 #2156f2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2156f2-9ca1c4-df754e-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