Color

#253dd4

#253dd4
hex#253dd4
rgbrgb(37, 61, 212)
hslhsl(232, 70%, 49%)
oklchoklch(0.458 0.229 267.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0848

Colors that go with #253dd4

Charcoal, Sea Green and Amber 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 →

#d4bd25

#2594d4 · #6625d4

#d4253d · #3dd425

Split-complementary

Open in tool →

#d46625 · #94d425

#d42594 · #d4bd25 · #25d466

Contrast

#253dd4 as textRatioAAAA largeAAAFix
Aaon white
7.79:1passpasspassPasses AAA — no fix needed.
Aaon black
2.7:1failfailfail
  • AA: use #5a6ce2 as the text (4.68:1)
  • AAA: use #818fe9 as the text (7.04:1)
  • AA: or shift the background to #c7c7c7 (4.61:1)
  • AAA: or shift the background to #f5f5f5 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #253dd4 as the background.

Brands using this color

Fonts for this mood

#253dd4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #253dd4
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 #253dd4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/253dd4-9c9dc4-df864e-231f2d-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