Color

#253ea2

#253ea2
hex#253ea2
rgbrgb(37, 62, 162)
hslhsl(228, 63%, 39%)
oklchoklch(0.411 0.164 267.6)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0645

Colors that go with #253ea2

Charcoal, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a28925

#257da2 · #4a25a2

#a2253e · #3ea225

Split-complementary

Open in tool →

#a24a25 · #7da225

#a2257d · #a28925 · #25a24a

Contrast

#253ea2 as textRatioAAAA largeAAAFix
Aaon white
9.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.29:1failfailfail
  • AA: use #556fd8 as the text (4.65:1)
  • AAA: use #7e92e2 as the text (7.1:1)
  • AA: or shift the background to #b8b8b8 (4.62:1)
  • AAA: or shift the background to #e3e3e3 (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 #253ea2 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

#253ea2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #253ea2
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

›analyze #253ea2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/253ea2-9c9fc4-df7c4e-231f2d-e9eff1?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