Color

#1f3075

#1f3075
hex#1f3075
rgbrgb(31, 48, 117)
hslhsl(228, 58%, 29%)
oklchoklch(0.34 0.12 268.7)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0369

Tints & shades

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

Harmonies

Complementary

Open in tool →

#75641f

#1f5b75 · #391f75

#751f30 · #30751f

Split-complementary

Open in tool →

#75391f · #5b751f

#751f5b · #75641f · #1f7539

Contrast

#1f3075 as textRatioAAAA largeAAAFix
Aaon white
12.08:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #566fd2 as the text (4.6:1)
  • AAA: use #8294de as the text (7.24:1)
  • AA: or shift the background to #9e9e9e (4.51:1)
  • AAA: or shift the background to #c7c7c7 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f3075 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

#1f3075 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f3075
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 #1f3075 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f3075-9c9fc4-df7c4e-231f2d-e9eff1?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