Color

#2182ab

#2182ab
hex#2182ab
rgbrgb(33, 130, 171)
hslhsl(198, 68%, 40%)
oklchoklch(0.572 0.106 231.7)
Closest name: Ahoy! Blue (#0082a1)Relative luminance 0.1923

Colors that go with #2182ab

Charcoal, Crimson and Royal 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 →

#ab4a21

#21ab90 · #213cab

#ab2182 · #82ab21

Split-complementary

Open in tool →

#ab213c · #ab9021

#9021ab · #ab4a21 · #3cab21

Contrast

#2182ab as textRatioAAAA largeAAAFix
Aaon white
4.33:1failpassfail
  • AA: use #207fa7 as the text (4.51:1)
  • AAA: use #185e7c as the text (7.16:1)
  • AA: or shift the background to #0a0a0a (4.57:1)
Aaon black
4.85:1passpassfail
  • AAA: use #29a2d6 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2182ab as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2182ab reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2182ab
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 #2182ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2182ab-9cb3c4-df4e69-1f232d-e9f1f0?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