Color

#2152ba

#2152ba
hex#2152ba
rgbrgb(33, 82, 186)
hslhsl(221, 70%, 43%)
oklchoklch(0.471 0.173 262.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.099

Colors that go with #2152ba

Charcoal, Steel Blue 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 →

#ba8a21

#219eba · #3d21ba

#ba2152 · #52ba21

Split-complementary

Open in tool →

#ba3d21 · #9eba21

#ba219e · #ba8a21 · #21ba3d

Contrast

#2152ba as textRatioAAAA largeAAAFix
Aaon white
7.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #3c6fdd as the text (4.51:1)
  • AAA: use #7095e6 as the text (7.13:1)
  • AA: or shift the background to #cfcfcf (4.52:1)
  • AAA: or shift the background to #ffffff (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2152ba as the background.

Brands using this color

Fonts for this mood

#2152ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2152ba
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 #2152ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2152ba-9ca4c4-df6b4e-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