Color

#b3bfcb

#b3bfcb
hex#b3bfcb
rgbrgb(179, 191, 203)
hslhsl(210, 19%, 75%)
oklchoklch(0.799 0.022 248.1)
Closest name: Arctic Ice (#b6bdd0)Relative luminance 0.5116

Colors that go with #b3bfcb

Charcoal, Copper 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cbbfb3

#b3cbcb · #b3b3cb

#cbb3bf · #bfcbb3

Split-complementary

Open in tool →

#cbb3b3 · #cbcbb3

#cbb3cb · #cbbfb3 · #b3cbb3

Contrast

#b3bfcb as textRatioAAAA largeAAAFix
Aaon white
1.87:1failfailfail
  • AA: use #61788f as the text (4.57:1)
  • AAA: use #48596a as the text (7.21:1)
  • AA: or shift the background to #4d4d4d (4.52:1)
  • AAA: or shift the background to #303030 (7.06:1)
Aaon black
11.23:1passpasspassPasses 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 #b3bfcb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b3bfcb reads as cool, muted, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b3bfcb
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 #b3bfcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3bfcb-9cabc4-df514e-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