Color

#30375f

#30375f
hex#30375f
rgbrgb(48, 55, 95)
hslhsl(231, 33%, 28%)
oklchoklch(0.351 0.07 274.7)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0419

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#5f5830

#304e5f · #40305f

#5f3037 · #375f30

Split-complementary

Open in tool →

#5f4030 · #4e5f30

#5f304e · #5f5830 · #305f40

Contrast

#30375f as textRatioAAAA largeAAAFix
Aaon white
11.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.84:1failfailfail
  • AA: use #6672b2 as the text (4.61:1)
  • AAA: use #8c94c5 as the text (7.16:1)
  • AA: or shift the background to #a3a3a3 (4.53:1)
  • AAA: or shift the background to #cccccc (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #30375f 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

#30375f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30375f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #30375f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30375f-9c9ec4-df834e-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