Color

#0a423d

#0a423d
hex#0a423d
rgbrgb(10, 66, 61)
hslhsl(175, 74%, 15%)
oklchoklch(0.343 0.055 185.9)
Closest name: Botanical Night (#12403c)Relative luminance 0.043

Colors that go with #0a423d

Crimson, Sea Green 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 →

#430a0f

#0a4322 · #0a2b43

#3e0a43 · #433e0a

Split-complementary

Open in tool →

#430a2b · #43220a

#220a43 · #430a0f · #2b430a

Contrast

#0a423d as textRatioAAAA largeAAAFix
Aaon white
11.29:1passpasspassPasses AAA — no fix needed.
Aaon black
1.86:1failfailfail
  • AA: use #14857c as the text (4.68:1)
  • AAA: use #19a99d as the text (7.2:1)
  • AA: or shift the background to #a6a6a6 (4.64:1)
  • AAA: or shift the background to #cccccc (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a423d as the background.

Brands using this color

Fonts for this mood

#0a423d reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a423d
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 #0a423d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a423d-a2bdbe-d4599f-1f282d-e9f1ed?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