Color

#b4c5da

#b4c5da
hex#b4c5da
rgbrgb(180, 197, 218)
hslhsl(213, 34%, 78%)
oklchoklch(0.817 0.035 253.7)
Closest name: Cloudy Valley (#b1c6d6)Relative luminance 0.547

Colors that go with #b4c5da

Charcoal, Sand and Crimson 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 #b4c5da

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dac9b4

#b4d8da · #b6b4da

#dab4c5 · #c5dab4

Split-complementary

Open in tool →

#dab6b4 · #d8dab4

#dab4d8 · #dac9b4 · #b4dab6

Contrast

#b4c5da as textRatioAAAA largeAAAFix
Aaon white
1.76:1failfailfail
  • AA: use #5279a7 as the text (4.51:1)
  • AAA: use #3d597b as the text (7.21:1)
  • AA: or shift the background to #4f4f4f (4.66:1)
  • AAA: or shift the background to #333333 (7.18:1)
Aaon black
11.94:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b4c5da as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b4c5da reads as cool, muted, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b4c5da
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 #b4c5da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b4c5da-9ca9c4-df584e-1f202d-e9f0f1?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