Color

#256fad

#256fad
hex#256fad
rgbrgb(37, 111, 173)
hslhsl(207, 65%, 41%)
oklchoklch(0.528 0.121 248.1)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1478

Colors that go with #256fad

Charcoal, Crimson and Amber 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 →

#ad6225

#25ada6 · #252bad

#ad256f · #6fad25

Split-complementary

Open in tool →

#ad252b · #ada625

#a625ad · #ad6225 · #2bad25

Contrast

#256fad as textRatioAAAA largeAAAFix
Aaon white
5.31:1passpassfail
  • AAA: use #1e5c8f as the text (7.04:1)
Aaon black
3.96:1failpassfail
  • AA: use #287abd as the text (4.61:1)
  • AAA: use #4e9bda as the text (7.02:1)
  • AA: or shift the background to #ededed (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #256fad as the background.

Brands using this color

Fonts for this mood

#256fad reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #256fad
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 #256fad and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/256fad-9cadc4-df4e53-1f212d-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