Color

#1c4e59

#1c4e59
hex#1c4e59
rgbrgb(28, 78, 89)
hslhsl(191, 52%, 23%)
oklchoklch(0.395 0.056 214.7)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0642

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#59271c

#1c5946 · #1c2f59

#591c4e · #4e591c

Split-complementary

Open in tool →

#591c2f · #59461c

#461c59 · #59271c · #2f591c

Contrast

#1c4e59 as textRatioAAAA largeAAAFix
Aaon white
9.2:1passpasspassPasses AAA — no fix needed.
Aaon black
2.28:1failfailfail
  • AA: use #2f8193 as the text (4.68:1)
  • AAA: use #3ba3ba as the text (7.13:1)
  • AA: or shift the background to #b8b8b8 (4.64:1)
  • AAA: or shift the background to #e3e3e3 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c4e59 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

#1c4e59 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c4e59
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1c4e59 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c4e59-a2b6be-df4e7a-1f252d-e9f1ef?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