Color

#302b5e

#302b5e
hex#302b5e
rgbrgb(48, 43, 94)
hslhsl(246, 37%, 27%)
oklchoklch(0.323 0.088 284.8)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0316

Colors that go with #302b5e

Dark Olive Green, 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 →

#595e2b

#2b405e · #4a2b5e

#5e302b · #2b5e30

Split-complementary

Open in tool →

#5e4a2b · #405e2b

#5e2b40 · #595e2b · #2b5e4a

Contrast

#302b5e as textRatioAAAA largeAAAFix
Aaon white
12.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.63:1failfailfail
  • AA: use #746cbc as the text (4.61:1)
  • AAA: use #958fcc as the text (7.08:1)
  • AA: or shift the background to #999999 (4.51:1)
  • AAA: or shift the background to #c2c2c2 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #302b5e 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

#302b5e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #302b5e
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 #302b5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/302b5e-a59cc4-dfa74e-271f2d-e9ecf1?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