Color

#b5b8ee

#b5b8ee
hex#b5b8ee
rgbrgb(181, 184, 238)
hslhsl(237, 63%, 82%)
oklchoklch(0.799 0.076 282)
Closest name: Purple Illusion (#b8b8f8)Relative luminance 0.5028

Colors that go with #b5b8ee

Charcoal, Deep Sky Blue and Dark Khaki 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 →

#eeebb4

#b4d4ee · #ceb4ee

#eeb4b7 · #b7eeb4

Split-complementary

Open in tool →

#eeceb4 · #d4eeb4

#eeb4d4 · #eeebb4 · #b4eece

Contrast

#b5b8ee as textRatioAAAA largeAAAFix
Aaon white
1.9:1failfailfail
  • AA: use #6167db as the text (4.7:1)
  • AAA: use #3c43d3 as the text (7.15:1)
  • AA: or shift the background to #4a4a4a (4.67:1)
  • AAA: or shift the background to #2e2e2e (7.15:1)
Aaon black
11.06:1passpasspassPasses 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 #b5b8ee as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#b5b8ee reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b5b8ee
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 #b5b8ee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b5b8ee-9f9cc4-df924e-251f2d-e9edf1?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