Color

#254dbb

#254dbb
hex#254dbb
rgbrgb(37, 77, 187)
hslhsl(224, 67%, 44%)
oklchoklch(0.463 0.179 264.9)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0929

Colors that go with #254dbb

Charcoal, Sea Green and Steel 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 →

#bb9325

#2598bb · #4825bb

#bb254d · #4dbb25

Split-complementary

Open in tool →

#bb4825 · #98bb25

#bb2598 · #bb9325 · #25bb48

Contrast

#254dbb as textRatioAAAA largeAAAFix
Aaon white
7.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.86:1failfailfail
  • AA: use #486fdb as the text (4.57:1)
  • AAA: use #7794e4 as the text (7.14:1)
  • AA: or shift the background to #cccccc (4.58:1)
  • AAA: or shift the background to #fafafa (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #254dbb as the background.

Brands using this color

Fonts for this mood

#254dbb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #254dbb
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 #254dbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/254dbb-9ca2c4-df724e-221f2d-e9eff1?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