Color

#150fbd

#150fbd
hex#150fbd
rgbrgb(21, 15, 189)
hslhsl(242, 85%, 40%)
oklchoklch(0.374 0.241 267.1)
Closest name: mediumblue (#0000cd)Relative luminance 0.0418

Colors that go with #150fbd

Charcoal, Crimson and Cornflower Blue 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 →

#b7bd0f

#0f60bd · #6c0fbd

#bd150f · #0fbd15

Split-complementary

Open in tool →

#bd6c0f · #60bd0f

#bd0f60 · #b7bd0f · #0fbd6c

Contrast

#150fbd as textRatioAAAA largeAAAFix
Aaon white
11.44:1passpasspassPasses AAA — no fix needed.
Aaon black
1.84:1failfailfail
  • AA: use #6863f2 as the text (4.66:1)
  • AAA: use #8d89f5 as the text (7.03:1)
  • AA: or shift the background to #a3a3a3 (4.54:1)
  • AAA: or shift the background to #cccccc (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #150fbd as the background.

Brands using this color

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

Fonts for this mood

#150fbd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #150fbd
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 #150fbd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/150fbd-a29cc4-df9e4e-261f2d-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