Color

#1f045d

#1f045d
hex#1f045d
rgbrgb(31, 4, 93)
hslhsl(258, 92%, 19%)
oklchoklch(0.244 0.137 283.8)
Closest name: Blackmail (#220066)Relative luminance 0.0117

Tints & shades

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

Harmonies

Complementary

Open in tool →

#425d04

#04165d · #4b045d

#5d1f04 · #045d1f

Split-complementary

Open in tool →

#5d4b04 · #165d04

#5d0416 · #425d04 · #045d4b

Contrast

#1f045d as textRatioAAAA largeAAAFix
Aaon white
17.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #8554f8 as the text (4.62:1)
  • AAA: use #a480fa as the text (7.05:1)
  • AA: or shift the background to #858585 (4.61:1)
  • AAA: or shift the background to #a8a8a8 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f045d 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

#1f045d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f045d
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 #1f045d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f045d-ad9cc4-dfc44e-291f2d-e9ebf1?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