Color

#2149b5

#2149b5
hex#2149b5
rgbrgb(33, 73, 181)
hslhsl(224, 69%, 42%)
oklchoklch(0.448 0.177 264.6)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0842

Colors that go with #2149b5

Charcoal, Sea Green and Steel 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 →

#b58e21

#2193b5 · #4421b5

#b52149 · #49b521

Split-complementary

Open in tool →

#b54421 · #93b521

#b52193 · #b58e21 · #21b544

Contrast

#2149b5 as textRatioAAAA largeAAAFix
Aaon white
7.82:1passpasspassPasses AAA — no fix needed.
Aaon black
2.68:1failfailfail
  • AA: use #466edd as the text (4.53:1)
  • AAA: use #7593e6 as the text (7.07:1)
  • AA: or shift the background to #c7c7c7 (4.63:1)
  • AAA: or shift the background to #f5f5f5 (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 #2149b5 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#2149b5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2149b5
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 #2149b5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2149b5-9ca2c4-df724e-221f2d-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