Color

#258be4

#258be4
hex#258be4
rgbrgb(37, 139, 228)
hslhsl(208, 78%, 52%)
oklchoklch(0.625 0.161 250.1)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2446

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e47e25

#25e4de · #252be4

#e4258b · #8be425

Split-complementary

Open in tool →

#e4252b · #e4de25

#de25e4 · #e47e25 · #2be425

Contrast

#258be4 as textRatioAAAA largeAAAFix
Aaon white
3.56:1failpassfail
  • AA: use #1979cc as the text (4.52:1)
  • AAA: use #135b9a as the text (7.02:1)
  • AA: or shift the background to #212121 (4.52:1)
Aaon black
5.89:1passpassfail
  • AAA: use #459ce8 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #258be4 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#258be4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #258be4
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 #258be4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/258be4-9cadc4-df4e51-1f212d-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