Color

#253e79

#253e79
hex#253e79
rgbrgb(37, 62, 121)
hslhsl(222, 53%, 31%)
oklchoklch(0.378 0.105 264.6)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0522

Colors that go with #253e79

Steel Blue, Blue and Crimson 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 →

#796025

#256879 · #362579

#79253e · #3e7925

Split-complementary

Open in tool →

#793625 · #687925

#792568 · #796025 · #257936

Contrast

#253e79 as textRatioAAAA largeAAAFix
Aaon white
10.27:1passpasspassPasses AAA — no fix needed.
Aaon black
2.04:1failfailfail
  • AA: use #4c71c8 as the text (4.5:1)
  • AAA: use #7a96d6 as the text (7.16:1)
  • AA: or shift the background to #adadad (4.58:1)
  • AAA: or shift the background to #d6d6d6 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #253e79 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

#253e79 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #253e79
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 #253e79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/253e79-9ca3c4-df6e4e-211f2d-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