Color

#259be4

#259be4
hex#259be4
rgbrgb(37, 155, 228)
hslhsl(203, 78%, 52%)
oklchoklch(0.662 0.146 242.4)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.2944

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e46e25

#25e4ce · #253be4

#e4259b · #9be425

Split-complementary

Open in tool →

#e4253b · #e4ce25

#ce25e4 · #e46e25 · #3be425

Contrast

#259be4 as textRatioAAAA largeAAAFix
Aaon white
3.05:1failpassfail
  • AA: use #177cba as the text (4.54:1)
  • AAA: use #115d8d as the text (7.06:1)
  • AA: or shift the background to #2b2b2b (4.64:1)
Aaon black
6.89:1passpassfail
  • AAA: use #2a9de5 as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #259be4 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

#259be4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #259be4
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 #259be4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/259be4-9cb0c4-df4e5d-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