Color

#252b5b

#252b5b
hex#252b5b
rgbrgb(37, 43, 91)
hslhsl(233, 42%, 25%)
oklchoklch(0.312 0.085 275)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0288

Colors that go with #252b5b

Dark Olive Green, Sea Green and Slate 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 →

#5b5425

#25465b · #3a255b

#5b252b · #2b5b25

Split-complementary

Open in tool →

#5b3a25 · #465b25

#5b2546 · #5b5425 · #255b3a

Contrast

#252b5b as textRatioAAAA largeAAAFix
Aaon white
13.33:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #636ebf as the text (4.51:1)
  • AAA: use #8b93d0 as the text (7.18:1)
  • AA: or shift the background to #969696 (4.51:1)
  • AAA: or shift the background to #bdbdbd (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #252b5b 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

#252b5b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #252b5b
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 #252b5b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/252b5b-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