Color

#230b4b

#230b4b
hex#230b4b
rgbrgb(35, 11, 75)
hslhsl(263, 74%, 17%)
oklchoklch(0.236 0.108 293.2)
Closest name: Your Darkness (#220044)Relative luminance 0.011

Colors that go with #230b4b

Charcoal, Royal Blue and Teal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#334b0b

#0b134b · #440b4b

#4b240b · #0b4b24

Split-complementary

Open in tool →

#4b440b · #134b0b

#4b0b13 · #334b0b · #0b4b44

Contrast

#230b4b as textRatioAAAA largeAAAFix
Aaon white
17.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #8d56e6 as the text (4.61:1)
  • AAA: use #ab83ec as the text (7.19:1)
  • AA: or shift the background to #858585 (4.66:1)
  • AAA: or shift the background to #a6a6a6 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #230b4b 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

#230b4b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #230b4b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #230b4b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/230b4b-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