Color

#253df4

#253df4
hex#253df4
rgbrgb(37, 61, 244)
hslhsl(233, 90%, 55%)
oklchoklch(0.492 0.266 267.2)
Closest name: C64 Blue (#003aff)Relative luminance 0.1026

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f4db25

#25a4f4 · #7425f4

#f4253d · #3df425

Split-complementary

Open in tool →

#f47425 · #a4f425

#f425a4 · #f4db25 · #25f474

Contrast

#253df4 as textRatioAAAA largeAAAFix
Aaon white
6.88:1passpassfail
  • AAA: use #2039f3 as the text (7.14:1)
Aaon black
3.05:1failpassfail
  • AA: use #5164f6 as the text (4.5:1)
  • AAA: use #818ff8 as the text (7.22:1)
  • AA: or shift the background to #d1d1d1 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #253df4 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

#253df4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #253df4
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 #253df4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/253df4-9c9cc4-df884e-241f2d-e9eef1?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