Color

#103f41

#103f41
hex#103f41
rgbrgb(16, 63, 65)
hslhsl(182, 60%, 16%)
oklchoklch(0.338 0.049 199.2)
Closest name: Rich Black (#004040)Relative luminance 0.0405

Colors that go with #103f41

Crimson, Sea Green and Steel Blue 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 →

#411210

#10412a · #102741

#411040 · #404110

Split-complementary

Open in tool →

#411027 · #412a10

#2a1041 · #411210 · #274110

Contrast

#103f41 as textRatioAAAA largeAAAFix
Aaon white
11.61:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #228387 as the text (4.66:1)
  • AAA: use #2ba7ab as the text (7.22:1)
  • AA: or shift the background to #a3a3a3 (4.6:1)
  • AAA: or shift the background to #c9c9c9 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #103f41 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

#103f41 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #103f41
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 #103f41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103f41-a2babe-d45990-1f272d-e9f1ee?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