Color

#1f516b

#1f516b
hex#1f516b
rgbrgb(31, 81, 107)
hslhsl(201, 55%, 27%)
oklchoklch(0.413 0.069 234.6)
Closest name: Bluedgeons (#324c64)Relative luminance 0.0724

Colors that go with #1f516b

Royal Blue, Teal and 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 →

#6b391f

#1f6b5f · #1f2a6b

#6b1f50 · #506b1f

Split-complementary

Open in tool →

#6b1f2a · #6b5f1f

#5f1f6b · #6b391f · #2a6b1f

Contrast

#1f516b as textRatioAAAA largeAAAFix
Aaon white
8.58:1passpasspassPasses AAA — no fix needed.
Aaon black
2.45:1failfailfail
  • AA: use #307da6 as the text (4.61:1)
  • AAA: use #4d9fcb as the text (7.14:1)
  • AA: or shift the background to #bdbdbd (4.57:1)
  • AAA: or shift the background to #e8e8e8 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f516b 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

#1f516b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f516b
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 #1f516b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f516b-9cb1c4-df4e62-1f222d-e9f1f0?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