Color

#23005b

#23005b
hex#23005b
rgbrgb(35, 0, 91)
hslhsl(263, 100%, 18%)
oklchoklch(0.242 0.138 288.5)
Closest name: Blackmail (#220066)Relative luminance 0.0111

Tints & shades

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

Harmonies

Complementary

Open in tool →

#395c00

#000b5c · #51005c

#5c2300 · #005c23

Split-complementary

Open in tool →

#5c5100 · #0b5c00

#5c000b · #395c00 · #005c51

Contrast

#23005b as textRatioAAAA largeAAAFix
Aaon white
17.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #914dff as the text (4.71:1)
  • AAA: use #ad7aff as the text (7:1)
  • AA: or shift the background to #858585 (4.66:1)
  • AAA: or shift the background to #a6a6a6 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23005b 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

#23005b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23005b
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 #23005b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23005b-b09cc4-dfd04e-2b1f2d-e9eaf1?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