Color

#215cf2

#215cf2
hex#215cf2
rgbrgb(33, 92, 242)
hslhsl(223, 89%, 54%)
oklchoklch(0.538 0.233 263.8)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1439

Colors that go with #215cf2

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 →

#f2b721

#21c5f2 · #4f21f2

#f2215c · #5cf221

Split-complementary

Open in tool →

#f24f21 · #c5f221

#f221c5 · #f2b721 · #21f24f

Contrast

#215cf2 as textRatioAAAA largeAAAFix
Aaon white
5.42:1passpassfail
Aaon black
3.88:1failpassfail
  • AA: use #356bf3 as the text (4.55:1)
  • AAA: use #6e95f7 as the text (7.31:1)
  • AA: or shift the background to #ebebeb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #215cf2 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#215cf2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #215cf2
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 #215cf2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/215cf2-9ca3c4-df704e-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