Color

#10423d

#10423d
hex#10423d
rgbrgb(16, 66, 61)
hslhsl(174, 61%, 16%)
oklchoklch(0.345 0.053 185.5)
Closest name: Botanical Night (#12403c)Relative luminance 0.0434

Colors that go with #10423d

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 →

#421015

#104224 · #102e42

#3d1042 · #423d10

Split-complementary

Open in tool →

#42102e · #422410

#241042 · #421015 · #2e4210

Contrast

#10423d as textRatioAAAA largeAAAFix
Aaon white
11.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #208379 as the text (4.58:1)
  • AAA: use #29a89c as the text (7.18:1)
  • AA: or shift the background to #a6a6a6 (4.62:1)
  • AAA: or shift the background to #cfcfcf (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10423d as the background.

Brands using this color

Fonts for this mood

#10423d reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10423d
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 #10423d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10423d-a2bebe-d459a1-1f292d-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