brandsweets

Color

#257cb6

#257cb6
hex#257cb6
rgbrgb(37, 124, 182)
hslhsl(204, 66%, 43%)
oklchoklch(0.564 0.12 243)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1819
CoolVividTechnicalModern
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
257cb6b65f25

#b65f25

Analogous

Open in tool →
257cb625b6a82534b6

#25b6a8 · #2534b6

Triadic

Open in tool →
257cb6b6257c7cb625

#b6257c · #7cb625

Split-complementary

Open in tool →
257cb6b62534b6a825

#b62534 · #b6a825

Tetradic

Open in tool →
257cb6a825b6b65f2534b625

#a825b6 · #b65f25 · #34b625

Contrast

#257cb6 as textRatioAAAA largeAAAFix
Aaon white
4.53:1passpassfail
  • AAA: use #1c5c87 as the text (7.17:1)
Aaon black
4.64:1passpassfail
  • AAA: use #459ed9 as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #257cb6 as the background.

Brands using this color

Fonts for this mood

#257cb6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →
mcpConnect your agent — build around #257cb6
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 #257cb6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/257cb6-9cafc4-df4e5a-1f222d-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