brandsweets

Color

#257abb

#257abb
hex#257abb
rgbrgb(37, 122, 187)
hslhsl(206, 67%, 44%)
oklchoklch(0.562 0.128 246.4)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.179
CoolVividTechnicalModern
Open in palette toolCheck contrast

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →
257abbbb6625

#bb6625

Analogous

Open in tool →
257abb25bbb1252fbb

#25bbb1 · #252fbb

Triadic

Open in tool →
257abbbb257a7abb25

#bb257a · #7abb25

Split-complementary

Open in tool →
257abbbb252fbbb125

#bb252f · #bbb125

Tetradic

Open in tool →
257abbb125bbbb66252fbb25

#b125bb · #bb6625 · #2fbb25

Contrast

#257abb as textRatioAAAA largeAAAFix
Aaon white
4.59:1passpassfail
  • AAA: use #1c5c8d as the text (7.08:1)
Aaon black
4.58:1passpassfail
  • AAA: use #4c9ddc as the text (7.16:1)

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

Brands using this color

Fonts for this mood

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

Technical fonts →Modern fonts →
mcpConnect your agent — build around #257abb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #257abb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/257abb-9caec4-df4e56-1f212d-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