Color

#257aa2

#257aa2
hex#257aa2
rgbrgb(37, 122, 162)
hslhsl(199, 63%, 39%)
oklchoklch(0.548 0.1 233.7)
Closest name: Bleu Ciel (#007ba1)Relative luminance 0.1692

Colors that go with #257aa2

Charcoal, Crimson and Royal 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 →

#a24c25

#25a28b · #253ca2

#a2257a · #7aa225

Split-complementary

Open in tool →

#a2253c · #a28b25

#8b25a2 · #a24c25 · #3ca225

Contrast

#257aa2 as textRatioAAAA largeAAAFix
Aaon white
4.79:1passpassfail
  • AAA: use #1c5e7d as the text (7.13:1)
Aaon black
4.38:1failpassfail
  • AA: use #267ea6 as the text (4.62:1)
  • AAA: use #339fd1 as the text (7.02:1)
  • AA: or shift the background to #fafafa (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #257aa2 as the background.

Brands using this color

Fonts for this mood

#257aa2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #257aa2
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 #257aa2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/257aa2-9cb3c4-df4e66-1f232d-e9f1f0?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