Color

#1e5257

#1e5257
hex#1e5257
rgbrgb(30, 82, 87)
hslhsl(185, 49%, 23%)
oklchoklch(0.406 0.055 204)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.07

Colors that go with #1e5257

Steel Blue, Rust 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 →

#57231e

#1e573f · #1e3657

#571e53 · #53571e

Split-complementary

Open in tool →

#571e36 · #573f1e

#3f1e57 · #57231e · #36571e

Contrast

#1e5257 as textRatioAAAA largeAAAFix
Aaon white
8.75:1passpasspassPasses AAA — no fix needed.
Aaon black
2.4:1failfailfail
  • AA: use #2f8189 as the text (4.62:1)
  • AAA: use #3ca5af as the text (7.19:1)
  • AA: or shift the background to #bababa (4.51:1)
  • AAA: or shift the background to #e6e6e6 (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 #1e5257 as the background.

Brands using this color

Fonts for this mood

#1e5257 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e5257
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 #1e5257 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e5257-a2b8be-df4e88-1f262d-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