Color

#021cc5

#021cc5
hex#021cc5
rgbrgb(2, 28, 197)
hslhsl(232, 98%, 39%)
oklchoklch(0.39 0.246 264.4)
Closest name: mediumblue (#0000cd)Relative luminance 0.0487

Colors that go with #021cc5

Charcoal, Cornflower Blue and Crimson 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 →

#c5ab02

#027dc5 · #4902c5

#c5021c · #1cc502

Split-complementary

Open in tool →

#c54902 · #7dc502

#c5027d · #c5ab02 · #02c549

Contrast

#021cc5 as textRatioAAAA largeAAAFix
Aaon white
10.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.97:1failfailfail
  • AA: use #4e66fd as the text (4.64:1)
  • AAA: use #7c8dfe as the text (7.1:1)
  • AA: or shift the background to #ababab (4.63:1)
  • AAA: or shift the background to #d4d4d4 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #021cc5 as the background.

Brands using this color

Fonts for this mood

#021cc5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #021cc5
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 #021cc5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/021cc5-9c9dc4-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