Color

#0217cf

#0217cf
hex#0217cf
rgbrgb(2, 23, 207)
hslhsl(234, 98%, 41%)
oklchoklch(0.399 0.259 264.4)
Closest name: mediumblue (#0000cd)Relative luminance 0.0513

Colors that go with #0217cf

Charcoal, Crimson and Cornflower 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 →

#cfbb02

#027dcf · #5402cf

#cf0217 · #17cf02

Split-complementary

Open in tool →

#cf5402 · #7dcf02

#cf027d · #cfbb02 · #02cf54

Contrast

#0217cf as textRatioAAAA largeAAAFix
Aaon white
10.36:1passpasspassPasses AAA — no fix needed.
Aaon black
2.03:1failfailfail
  • AA: use #5364fd as the text (4.61:1)
  • AAA: use #818dfe as the text (7.17:1)
  • AA: or shift the background to #ababab (4.51:1)
  • AAA: or shift the background to #d6d6d6 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0217cf as the background.

Brands using this color

Fonts for this mood

#0217cf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0217cf
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 #0217cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0217cf-9d9cc4-df8a4e-241f2d-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