Color

#2b678c

#2b678c
hex#2b678c
rgbrgb(43, 103, 140)
hslhsl(203, 53%, 36%)
oklchoklch(0.491 0.086 239)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1211

Colors that go with #2b678c

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 →

#8c502b

#2b8c81 · #2b368c

#8c2b67 · #678c2b

Split-complementary

Open in tool →

#8c2b36 · #8c812b

#812b8c · #8c502b · #368c2b

Contrast

#2b678c as textRatioAAAA largeAAAFix
Aaon white
6.14:1passpassfail
  • AAA: use #265c7d as the text (7.22:1)
Aaon black
3.42:1failpassfail
  • AA: use #347ba8 as the text (4.54:1)
  • AAA: use #539dca as the text (7.04:1)
  • AA: or shift the background to #dedede (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b678c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2b678c reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b678c
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 #2b678c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b678c-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