Color

#30357e

#30357e
hex#30357e
rgbrgb(48, 53, 126)
hslhsl(236, 45%, 34%)
oklchoklch(0.369 0.122 275.7)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0468

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7e7930

#305c7e · #51307e

#7e3035 · #357e30

Split-complementary

Open in tool →

#7e5130 · #5c7e30

#7e305c · #7e7930 · #307e51

Contrast

#30357e as textRatioAAAA largeAAAFix
Aaon white
10.85:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #676ec5 as the text (4.61:1)
  • AAA: use #8c91d4 as the text (7.12:1)
  • AA: or shift the background to #a8a8a8 (4.56:1)
  • AAA: or shift the background to #d1d1d1 (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 #30357e 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

#30357e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30357e
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 #30357e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30357e-9e9cc4-df8f4e-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