Color

#215eed

#215eed
hex#215eed
rgbrgb(33, 94, 237)
hslhsl(222, 85%, 53%)
oklchoklch(0.537 0.224 263.3)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1444

Colors that go with #215eed

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 →

#edb021

#21c4ed · #4a21ed

#ed215e · #5eed21

Split-complementary

Open in tool →

#ed4a21 · #c4ed21

#ed21c4 · #edb021 · #21ed4a

Contrast

#215eed as textRatioAAAA largeAAAFix
Aaon white
5.4:1passpassfail
  • AAA: use #114ad0 as the text (7.21:1)
Aaon black
3.89:1failpassfail
  • AA: use #346cef as the text (4.54:1)
  • AAA: use #6d95f3 as the text (7.24:1)
  • AA: or shift the background to #ebebeb (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #215eed as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#215eed reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #215eed
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 #215eed and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/215eed-9ca3c4-df6e4e-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