Color

#103d39

#103d39
hex#103d39
rgbrgb(16, 61, 57)
hslhsl(175, 58%, 15%)
oklchoklch(0.329 0.049 186.7)
Closest name: Botanical Night (#12403c)Relative luminance 0.0374

Colors that go with #103d39

Crimson, Sea Green and Sienna 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 →

#3c1014

#103c23 · #102a3c

#39103c · #3c3910

Split-complementary

Open in tool →

#3c102a · #3c2310

#23103c · #3c1014 · #2a3c10

Contrast

#103d39 as textRatioAAAA largeAAAFix
Aaon white
12.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #23857d as the text (4.72:1)
  • AAA: use #2da99f as the text (7.29:1)
  • AA: or shift the background to #a1a1a1 (4.65:1)
  • AAA: or shift the background to #c7c7c7 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #103d39 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#103d39 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #103d39
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 #103d39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103d39-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