Color

#41658b

#41658b
hex#41658b
rgbrgb(65, 101, 139)
hslhsl(211, 36%, 40%)
oklchoklch(0.496 0.074 250.8)
Closest name: Admiral Blue (#50647f)Relative luminance 0.123

Colors that go with #41658b

Charcoal, Sienna 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 →

#8b6741

#41898b · #43418b

#8b4165 · #658b41

Split-complementary

Open in tool →

#8b4341 · #898b41

#8b4189 · #8b6741 · #418b43

Contrast

#41658b as textRatioAAAA largeAAAFix
Aaon white
6.07:1passpassfail
  • AAA: use #3b5b7d as the text (7.05:1)
Aaon black
3.46:1failpassfail
  • AA: use #4e79a6 as the text (4.61:1)
  • AAA: use #789abf as the text (7.17:1)
  • AA: or shift the background to #dedede (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #41658b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#41658b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #41658b
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 #41658b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/41658b-9cabc4-df534e-1f202d-e9f1f1?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