Color

#253a55

#253a55
hex#253a55
rgbrgb(37, 58, 85)
hslhsl(214, 39%, 24%)
oklchoklch(0.344 0.055 255.2)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0408

Colors that go with #253a55

Dark Olive Green, Sea Green and Teal 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 →

#554025

#255255 · #292555

#55253a · #3a5525

Split-complementary

Open in tool →

#552925 · #525525

#552552 · #554025 · #255529

Contrast

#253a55 as textRatioAAAA largeAAAFix
Aaon white
11.57:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #4c76ae as the text (4.51:1)
  • AAA: use #7899c4 as the text (7.15:1)
  • AA: or shift the background to #a3a3a3 (4.59:1)
  • AAA: or shift the background to #cccccc (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #253a55 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

#253a55 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #253a55
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 #253a55 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/253a55-9ca9c4-df5a4e-1f1f2d-e9f0f1?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