Color

#2b648c

#2b648c
hex#2b648c
rgbrgb(43, 100, 140)
hslhsl(205, 53%, 36%)
oklchoklch(0.484 0.088 242.3)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1152

Colors that go with #2b648c

Charcoal, Royal Blue and Sienna 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 →

#8c542b

#2b8c84 · #2b338c

#8c2b64 · #648c2b

Split-complementary

Open in tool →

#8c2b33 · #8c842b

#842b8c · #8c542b · #338c2b

Contrast

#2b648c as textRatioAAAA largeAAAFix
Aaon white
6.36:1passpassfail
  • AAA: use #285c81 as the text (7.15:1)
Aaon black
3.3:1failpassfail
  • AA: use #357aac as the text (4.53:1)
  • AAA: use #5b9dcd as the text (7.15:1)
  • AA: or shift the background to #d9d9d9 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b648c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2b648c reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b648c
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 #2b648c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b648c-9cafc4-df4e58-1f212d-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