Color

#2d33a4

#2d33a4
hex#2d33a4
rgbrgb(45, 51, 164)
hslhsl(237, 57%, 41%)
oklchoklch(0.398 0.178 272.7)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0561

Colors that go with #2d33a4

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 →

#a49e2d

#2d6fa4 · #632da4

#a42d33 · #33a42d

Split-complementary

Open in tool →

#a4632d · #6fa42d

#a42d6f · #a49e2d · #2da463

Contrast

#2d33a4 as textRatioAAAA largeAAAFix
Aaon white
9.9:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #6369d4 as the text (4.5:1)
  • AAA: use #8b8fdf as the text (7.09:1)
  • AA: or shift the background to #b0b0b0 (4.56:1)
  • AAA: or shift the background to #d9d9d9 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d33a4 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

#2d33a4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d33a4
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 #2d33a4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d33a4-9f9cc4-df924e-251f2d-e9edf1?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