Color

#4182aa

#4182aa
hex#4182aa
rgbrgb(65, 130, 170)
hslhsl(203, 45%, 46%)
oklchoklch(0.581 0.091 238.1)
Closest name: steelblue (#4682b4)Relative luminance 0.1999

Colors that go with #4182aa

Charcoal, Copper 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.

Real palettes that use #4182aa

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#aa6941

#41aa9e · #414daa

#aa4182 · #82aa41

Split-complementary

Open in tool →

#aa414d · #aa9e41

#9e41aa · #aa6941 · #4daa41

Contrast

#4182aa as textRatioAAAA largeAAAFix
Aaon white
4.2:1failpassfail
  • AA: use #3e7ca3 as the text (4.55:1)
  • AAA: use #2e5d7a as the text (7.09:1)
  • AA: or shift the background to #0f0f0f (4.56:1)
Aaon black
5:1passpassfail
  • AAA: use #609dc3 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4182aa as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#4182aa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4182aa
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 #4182aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4182aa-9cb0c4-df4e5d-1f222d-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